Publications
Kolev Research Group
Publications from the Kolev Research Group.
Professor Spas Kolev is Editor-in-Chief of Talanta and Membranes.
Talanta provides a forum for the publication of original research papers, short communications, and critical reviews in all branches of pure and applied analytical chemistry. Membranes is an international, peer-reviewed, open access journal covering the broad aspects of the science and technology of both biological and non-biological membranes, published monthly online by MDPI.
2026
JJ Seet, SD Kolev, R Guijt, HH See, F Maya, MA Atia, EA Nagul, OP Missen, MIGS Almeida, M Breadmore, Optimisation of electrokinetic extraction system: colourimetric determination of copper(ii) in sand using polymer inclusion membrane, Electrophoresis (http://doi.org/10.1002/elps.70120).
D Tambaru, CF Croft, EA Nagul, MIGS Almeida, SD Kolev, EA Nagul, Development of a sequential injection analysis technique for the automatic simultaneous determination of sulfite and sulfate in water samples, Talanta 310 (2026) 130069 (https://doi.org/10.1016/j.talanta.2026.130069).
L Kukoc, M Biocic, TG Spassov, SD Kolev, Development of two flow analysis methods for the determination of tiopronin in pharmaceuticals, Talanta 309 (2026) 130002 (https://doi.org/10.1016/j.talanta.2026.130002).
JN Smith, CF Croft, EA Nagul, SD Kolev, 3D printed liquid membrane transport system, HardwareX HardwareX 26 (2026) e00791 (https://doi.org/10.1016/j.ohx.2026.e00791).
A Rybak, A Rybak, J Joostberens, SD Kolev, The use of modern hybrid membranes for CO2 separation from synthetic and industrial gas mixtures in the light of energy transition, Energies, Energies 19 (2026) 2002 (https://doi.org/10.3390/en19082002).
L Kukoc, K Velikova; S Perinovic-Jozic, M Biocic, M Gateshki SD Kolev, T Spassov, Effect of Glass Fibers on the Mechanical and Transport Properties of Polymer Inclusion MembranesComposed of Aliquat 336 and PVDF-HFP, Membranes 16 (2026) 141 (https://doi.org/10.3390/membranes16040141).
S Ivanova, CF Croft, T Sarafska, JN Smith, L Kukoc, SD Kolev, TG Spassov, Thermal analysis-based elucidation of the phase behavior in the HBTA:TOPO binary system, Thermo 6 (2026) 9 (https://doi.org/10.3390/thermo6010009)
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A Rybak, A Rybak, SD Kolev, Forecasting the development of offshore wind energy in Poland in the context of energy transformation and sustainable development goals, Energies 18 (2025) 5380 (https://doi.org/10.3390/en18205380).
K Velikova, T Dudev, T Sarafska, L Kukoc Modun, SD Kolev, T Spassov, Assessing the long-term stability of polymer inclusion membranes. The case of Aliquat 336-based membranes, Membranes 15 (2025) 309 (https://doi.org/10.3390/membranes15100309).
CF Croft, T Sarafska, TG Spassov, SD Kolev, Development of a polymer inclusion membrane incorporating a 1-dodecanol–decanoic acid eutectic mixture for the extraction of Dy3+ and Y3+, Reactive and Functional Polymers 216 (2025) 106454 (https://doi.org/10.1016/j.reactfunctpolym.2025.106454).
LA Hidalgo, CF Croft, EA Nagul, MIGS Almeida, L Mihaylov, TG Spassov, SD Kolev, Development and application of polymer inclusion beads (PIBs) for the recovery of Zn(II) from industrial waste electroplating solutions, Separation and Purification Technology 378 (2025) 134581 (https://doi.org/10.1016/j.seppur.2025.134581).
A Rybak, A Rybak, J Joostberens, SD Kolev, Energy transformation in Poland and Sweden: Implementation of the SDG 7 goal and its impact on the demand for key energy carriers, Energy Reports 14 (2025) 1726-1737 (https://doi.org/10.1016/j.egyr.2025.08.029).
A Rybak, A Rybak, J Joostberens, SD Kolev, Assessment of the impact of renewable energy sources and clean coal technologies on the stability of energy systems in Poland and Sweden, Energies 18 (2025) 4377(https://doi.org/10.3390/en18164377).
A Rybak, A Rybak, S Boncel, A Kolanowska, W Kaszuwara, M Nyc, R Molak, J Jaroszewicz, SD Kolev, Characterization of rare earth element sensitive adsorptive hybrid membranes based on ion imprinted Multifunctional REE selective hybrid membranes based on ion-imprinted polymers and modified multiwalled carbon nanotubes: a physicochemical characterization, International Journal of Molecular Sciences 26 (2025) 7136 (https://doi.org/10.3390/ijms26157136).
JJ Seet, EA Nagul, SD Kolev, R Guijt, HH See, MA Atia, OP Missen, MIGS Almeida, F Maya, M Breadmore, Colorimetric measurement of copper (II) in sand using direct electrokinetic extraction into a polymer inclusion membrane, Analytical Chimica Acta 1369 (2025) 344262 (https://doi.org/10.1016/j.aca.2025.344262).
N Goodman, N Nematollahi, JL Weinberg, J Flattery, SD Kolev, M Tong, S Vardoulakis, A Steinemann, Volatile chemical in regular and organic vaping liquids: a public health concern, Air Quality, Atmosphere & Health18 (2025) 307-315 (https://doi.org/10.1007/s11869-024-01645-9).
L Kukoc-Modun, M Biocic, J Dugeč, TG Spassov, SD Kolev, Determination of penicillamine in an unsegmented continuous flow analyzer, Pharmacia 72 (2025) 1-7 (https://doi.org/10.3897/pharmacia.72.e141012).
Y Ni H’ng, MIGS Almeida, RN Lamb, SD Kolev, X Duan, A comparative evaluation of leaching reagents of platinum group metals from spent catalytic converters using microwave heating, Chemistry, An Asian Journal (2025) e202400895 (1 to 10) (https://doi.org/10.1002/asia.202400895).
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CF Croft, EA Nagul, MIGS Almeida, SD. Kolev, Polymer-based extracting materials in the green recycling of rare earth elements. A review, ACS Omega 9 (2024) 40315-40328 (https://doi.org/10.1021/acsomega.4c06990).
SE Walkera, A Zhoua, M Lama, EA Nagul, GJ Barbante, SD Kolev, VJ Cadarso, KL Tuck, A systematic study of fluorescent coumarin sensors for the detection of aqueous copper ions and aqueous hydrogen sulfide, Supramolecular Chemistry 34 (2023) 449-457 (https://doi.org/10.1080/10610278.2024.2412133).
N Nematollahi, A Steinemann, SD Kolev, AA Hoffmann, PA Ross, Fragranced versus fragrance-free products: a comparison of toxicity, Air Quality, Atmosphere & Health 17 (2024) 3045-3050 (https://doi.org/10.1007/s11869-024-01620-4).
V Petkova, D Anastasova, S Dobrev, M Mutovska, N Kircheva, V Nikolova, SD Kolev, S Stoyanov, Y Zagranyarski, T Dudev, S Angelova, Naphthalimide-based amphiphiles: synthesis and DFT studies of the aggregation and interaction of a simplified model system with water molecules, Molecules 29 (2024) 4204 (https://doi.org/10.3390/molecules29174204).
M Biocic, T Kraljević, TG Spassov, L Kukoc-Modun, SD Kolev, Sequential injection analysis method for the determination of glutathione in pharmaceuticals, Sensors 24 (2024) 5677 (https://doi.org/10.3390/s24175677).
A Rybak, A Rybak, J Joostberens, SD Kolev, Key SDG7 factors shaping the future of clean coal technologies: Analysis of trends and prospects in Poland, Energies 17 (2024) 4133 (https://doi.org/10.3390/en17164133).
CF Croft, MIGS Almeida, SD Kolev, Online separation of critical rare earth elements from end-of-life permanent magnets using micro polymer inclusion beads (µPIBs), Minerals Engineering214 (2024) 108779 (https://doi.org/10.1016/j.mineng.2024.108779).
N Uhlikova, I McKelvie, SD Kolev, E Vassileva, TG Spassov, MIGS Almeida, Preconcentrating extractive polymeric network in paper-based sensing of copper, MicrochemicalJournal202 (2024) 110744 (https://doi.org/10.1016/j.microc.2024.110744).
D Tambaru, EA Nagul, MIGS Almeida, SD Kolev, Development of a sequential injection analysis method for the automatic speciation of inorganic selenium in water samples, Microchemical Journal 201 (2024) 110688 (https://doi.org/10.1016/j.microc.2024.110688).
A Rybak, A Rybak, SD Kolev, Development of wind energy and access to REE. The case of Poland, Resources Policy 90 (2024) 104723 (https://doi.org/10.1016/j.resourpol.2024.104723).
N Uhlikova, MIGS Almeida, I McKelvie, R Morrison, SD Kolev, Microfluidic paper-based analytical device for the speciation of inorganic nitrogen species, Talanta271 (2024) 125671 (https://doi.org./10.1016/j.talanta.2024.125671).
S Zhao, A Samadi, Z Wang, JM Pringle, Y Zhang, SD Kolev, Ionic liquid-based polymer inclusion membranes for metal ions extraction and recovery: Fundamentals, considerations, and prospects, Chemical Engineering Journal 481 (2024) 148792 (https://doi.org/10.1016/j.cej.2024.148792).
B Alcalde, G Elias, SD Kolev, JA Méndez, S Díez, H Oliver-Ortega,E Anticó, C Fontàs, A comprehensive study on the effect of plasticizers on the char-2 acteristics of polymer inclusion membranes (PIMs): exploring 3 butyl stearate as a promising alternative, Membranes 14 (2024) 19 (https://doi.org/10.3390/membranes14010019).
L Kukoc-Modun, T Kraljevic, D Tsikas, TG Spassov, SD Kolev, Sequential injection method for the spectrophotometric determination of N-acetyl-L-cysteine ethyl ester (NACET), Sensors 24 (2024) 312 (https://doi.org/10.3390/s24020312).
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A Rybak, A Rybak, SD Kolev, Modeling the photovoltaic power generation in Poland in the light of PEP2040: an application of multiple regression, Energies 16 (2023) 7476 (https://doi.org/10.3390/en16227476).
A Rybak, A Rybak, SD Kolev, AA synthetic measure of energy security taking into account the influence of rare earth metals. The case of Poland, Energy Reports 10 (2023) 1474-1484 (https://doi.org/10.1016/j.egyr.2023.08.018).
K Kiwfo, S Suteerapataranon, ID McKelvie, PM Woi, SD Kolev, C Saenjum, GD Christian, K Grudpan, A new Need, Quality, and Sustainability (NQS) index for evaluating chemical analysis procedures using natural reagents, Microchemical Journal 193 (2023) 109026 (https://doi.org/10.1016/j.microc.2023.109026).
N Uhlikova, MIGS Almeida, I McKelvie, R Morrison, SD Kolev, Use of scanners for colorimetric analysis of microfluidic paper-based analytical devices (µPADs): A practical guide, Microchemical Journal 191 (2023) 108879 (https://doi.org/10.1016/j.microc.2023.108879).
S Kagaya, K Hida-Matsuda, S Tsuzaka, C Minami, M Gemmei-Ide, RW Cattrall, SD Kolev, The determination of zinc using flow injection and continuous flow analysis combined with a polymer inclusion film-coated column: Application to the determination of zinc in alloys and commercial lithium chloride, Talanta 259 (2023) 124545 (https://doi.org/10.1016/j.talanta.2023.124545).
SA Satyawirawan, RW Cattrall, SD Kolev, MIGS Almeida, Improving Co(II) separation from Ni(II) by solvent extraction using phosphonium based ionic liquids. Journal of Molecular Liquids 380 (2023) 121764 (https://doi.org/10.1016/j.molliq.2023.121764).
A Rybak, A Rybak, SD Kolev, A modern computer application to model rare earth element ion behavior in adsorptive membranes and materials, Membranes 13 (2023) 175 (https://doi.org/10.3390/membranes13020175).
N Wu, MIGS Almeida, S Simeonova, TG Spassov, RW Cattrall, M Datcheva, SD Kolev, Preparation and characterization of very thin polymer inclusion membranes (PIMs) and their application to the transport of thiocyanate Journal of Membrane Science 668 (2023) 121249 (https://doi.org/10.1016/j.memsci.2022.121249).
A Feng, N Akther, X Duan, S Peng, C Onggowarsito, S Mao, Q Fu, SD Kolev, Recent Development of Atmospheric Water Harvesting Materials: A Review, ACS Materials Au 2 (2023) 576-595 (https://doi.org/10.1021/acsmaterialsau.2c00027).
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A Rybak, A Rybak, J Joostberens, SD Kolev, Cluster analysis of EU-27 countries in light of the guiding principles of the European Green Deal, with particular emphasis on Poland, Energies 15 (2022) 5082 (https://doi.org/10.3390/en15145082).
A Rybak, A Rybak, S Boncel, A Kolanowska, W Kaszuwara, SD Kolev, Hybrid organic-inorganic membranes based on sulfonated poly (ether ether ketone) matrix and iron-encapsulated carbon nanotubes and their application in CO2 separation, RSC Advances 21 (2022) 13367-13380 (https://doi.org/10.1039/D2RA01585D).
M Bonacci, MIGS Almeida, Y Zhang, SD Kolev, Hydride generation microfluidic paper-based analytical device (HG-µPAD) for the speciation of inorganic arsenic in aqueous samples, Microchimica Acta 189 (2022) 243 (https://doi.org/10.1007/s00604-022-05339-w).
F Nitti, MIGS Almeida, R Morrison, RW Cattrall, VJ Pettigrove, RA Coleman, SD Kolev, Flow-through passive sampling device for zinc in freshwaters free from flow pattern, water matrix and temperature effects, Microchemical Journal 177 (2022) 107294 (https://doi.org/10.1016/j.microc.2022.107294).
A Rybak, A Rybak, W Kaszuwara, S Boncel, A Kolanowska, SD Kolev, Characteristics of inorganic-organic hybrid membranes containing carbon nanotubes with increased iron-encapsulated content for CO2 separation, Membranes 12 (2) (2022) 132 (https://doi.org/10.3390/membranes12020132).
S Bahrami, L Dolatyari, H Shayani-Jam, MR Yaftian, SD Kolev, On the potential of a poly(vinylidenefluoride-co-hexafluoropropylene) polymer inclusion membrane containing Aliquat® 336 and dibutyl phthalate for V(V) extraction from sulfate solutions, Membranes 12 (1) (2022) 90 (https://doi.org/10.3390/membranes12010090).
CF Croft, MIGS Almeida, SD Kolev, Development of micro polymer inclusion beads (µPIBs) for the extraction of lanthanum, Separation and Purification Technology 285 (2022) 120342 (https://doi.org/10.1016/j.seppur.2021.120342)
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Y Zhang, CF Croft, RW Cattrall, SD Kolev, Microfluidic fabrication of micro polymer inclusion beads (µPIBs). Application to the recovery of gold from electronic scrap, ACS Applied Materials & Interfaces 13 (2021) 51 (https://doi.org/10.1021/acsami.1c19506)
A Rybak, A Rybak, SD Kolev, Analysis of the EU-27 countries energy markets integration in terms of the sustainable development goal seven implementation, Energies 14 (2021) 7079 (https://doi.org/10.3390/en14217079).
PA Ross, N Nematollahi, A Steinemann, SD Kolev, AA Hoffmann, Differential toxicological effects of natural and synthetic sources and enantiomeric forms of limonene on mosquito larvae, Air Quality, Atmosphere & Health (Air Quality, Atmosphere & Health (2021) (https://doi.org/10.1007/s11869-021-01106-7).
N Nematollahi, PA Ross, AA Hoffmann, SD Kolev, A Steinemann, Limonene emissions: do different types have different biological effects? International Journal of Environmental Research and Public Health 18 (2021) 10505 (https://doi.org/10.3390/ijerph181910505).
MD Sharma, SS Rayalu, SD Kolev, RJ Krupadam, Graphene/fluorescein dye-based sensor for detecting As(III) in drinking water, Scientific Reports 11 (2021) 17321 (https://doi.org/10.1038/s41598-021-96968-3).
D Kazemi, MR Yaftian, SD Kolev, Selective extraction of Bi(III) from sulfate solutions by a poly(vinyl chloride) based polymer inclusion membrane incorporating bis(2-ethylhexyl)phosphoric acid as the extractant, Reactive and Functional Polymers 164 (2021) 104935 (https://doi.org/10.1016/j.reactfunctpolym.2021.104935)
B Hoque, SD Kolev, RW Cattrall, TG Gopakumar, MIGS Almeida, A cross-linked polymer inclusion membrane for enhanced gold recovery from electronic waste, Waste Management 124 (2021) 54-62 (https://doi.org/10.1016/j.wasman.2021.01.009)
B Hoque, MIGS Almeida, RW Cattrall, TG Gopakumar, SD Kolev, Improving the performance of polymer inclusion membranes by cross-linking their polymeric backbone, Reactive and Functional Polymers 160 (2021)104813 (https://doi.org/10.1016/j.reactfunctpolym.2021.104813).
N Nematollahi, JL Weinberg, J Flattery, N Goodman, SD Kolev, A Steinemann, Volatile chemical emissions from essential oils with therapeutic claims, Air Quality, Atmosphere & Health (2021) (https://doi.org/10.1007/s11869-020-00941-4)
A Steinemann, N Nematollahi, B Rismanchi, N Goodman, SD Kolev, Pandemic products and volatile chemical emissions, Air Quality, Atmosphere & Health 14 (2021) 47-53 (https://doi.org/10.1007/s11869-020-00912-9).
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TCF Ribas, CF Croft, MIGS Almeida, RBR Mesquita, SD. Kolev, AOSS Rangel, Use of a polymer inclusion membrane and a chelating resin for the flow-based sequential determination of copper(II) and zinc(II) in natural waters and soil leachates, Molecules 25 (2020) 5062 (https://doi.org/10.3390/molecules25215062)
L O’Connor Šraj, MIGS Almeida, SM Sharp, ID McKelvie,R Morrison,SD Kolev, Ammonia passive sampler for monitoring of marine waters with biofouling resistance and neural network-based calibration, Environmental Pollution 267 (2020) 115457 (https://doi.org/10.1016/j.envpol.2020.115457)
A Steinemann, N Nematollahi, JL Weinberg, J Flattery, N Goodman, SD Kolev, Volatile chemical emissions from car air fresheners, Air Quality, Atmosphere & Health 13 (2020) 1329-1334 (https://doi.org/10.1007/s11869-020-00886-8).
Z Wei, B Gao, KY Cheng, AH Kaksonen, SD Kolev, JWC Wong, J. Cui, Exploring the use of Dicranopteris pedata ash as a rare earth fertilizer to Ipomoea aquatica Forsskal, Journal of Hazardous Materials 400 (2020) 123207 (https://doi.org/10.1016/j.jhazmat.2020.123207).
S Bahrami, MR Yaftian, P Najvak, L Dolatyari, H Shayani-Jam, SD Kolev, PVDF-HFP based polymer inclusion membranes containing Cyphos® IL 101 and Aliquat® 336 for the removal of Cr(VI) from sulfate solutions, Separation and Purification Technology 250 (2020) 117251 (https://doi.org/10.1016/j.seppur.2020.117251).
T Hanada, ML Firmansyah, W Yoshida, F Kubota, SD Kolev, M Goto, Transport of rhodium(III) from chloride media across a polymer inclusion membrane containing an ionic liquid metal ion carrier, ACS Omega 5 (2020) 12989-12995 (https://doi.org/10.1021/acsomega.0c00867).
T Moniz, CR Bassett, MIGS Almeida, SD Kolev, M Rangel, RBR Mesquita, Use of an ether-derived 3-hydroxy-4-pyridinone chelator as a new chromogenic reagent in the development of a microfluidic paper-based analytical device for Fe(III) determination in natural waters, Talanta 214 (2020) 120887 (https://doi.org/10.1016/j.talanta.2020.120887).
HJP Alcantara, F Jativa, AI Doronila, CWN Anderson, R Siegele, TG Spassov, JT. Sanchez-Palacios, BA Boughton, SD Kolev, Mercury and gold localization and gold nanoparticle formation in cassava (Manihot esculenta Crantz.), Environmental Science and Pollution Research 27 (2020) 18498-18509 (https://doi.org/10.1007/s11356-020-08285-3).
CA Carner, CF Croft, SD Kolev, MIGS Almeida, Green solvents for the fabrication of polymer inclusion membranes (PIMs), Separation and Purification Technology 239 (2020) 116486 (https://doi.org/10.1016/j.seppur.2019.116486).
B Kuswandi, F Nitti, MIGS Almeida, SD Kolev, Water monitoring using polymer inclusion membranes: a review, Environmental Chemistry Letters 18 (2020) 129-150 (https://doi.org/10.1007/s10311-019-00930-9).
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2019
W Yoshida, F Kubota, Y Baba, SD Kolev, M Goto, Separation and recovery of scandium from sulfate media by solvent extraction and polymer inclusion membrane with amic acid extractant/carrier, ACS Omega 4 (2019) 21122-21130 (https://doi.org/10.1021/acsomega.9b02540).
N Nematollahi, SD Kolev, A Steinemann, Volatile chemical emissions from 134 common consumer products, Air Quality, Atmosphere & Health 12 (2019) 1259-1265 (https://doi.org/10.1007/s11869-019-00754-0).
B Hoque, MIGS Almeida, RW Cattrall, TG Gopakumar, SD Kolev, Effect of cross-linking on the stability of polymer inclusion membranes (PIMs) for the extraction and separation of Zn(II), Journal of Membrane Science 589 (2019) 117256 (https://doi.org/10.1016/j.memsci.2019.117256)
X Xiong, MIGS Almeida, S Simeonova, TG Spassov, RW Cattrall, SD Kolev, The potential of polystyrene-block-polybutadiene-block-polystyrene triblock co-polymer as a base polymer of polymer inclusion membranes (PIMs), Separation and Purification Technology 229 (2019) 115800 (https://doi.org/10.1016/j.seppur.2019.115800).
EA Nagul, CF Croft, RW Cattrall, SD Kolev, Nanostructural characterisation of polymer inclusion membranes using X-ray scattering, Journal of Membrane Science 558 (2019) 117208 (https://doi.org/10.1016/j.memsci.2019.117208).
JJ Peters, MIGS Almeida, L O’Connor Šraj, ID McKelvie, SD. Kolev, Development of a micro-distillation microfluidic paper-based analytical device as a screening tool for total ammonia monitoring in freshwaters, Analytica Chimica Acta 1079 (2019) 120-128 (https://doi.org/10.1016/j.aca.2019.05.050).
R Vera, Y Zhang, C Fontàs, MIGS Almeida, E Anticó, RW Cattrall, SD Kolev, Automatic determination of arsenate in drinking water by flow analysis with dual membrane-based separation, Food Chemistry 283 (2019) 232-238 (https://doi.org/10.1016/j.foodchem.2018.12.122)
F Kubota, R Kono, W Yoshida, M Sharaf, SD Kolev, M Goto, Recovery of gold ions from discarded mobile phone leachate by solvent extraction and polymer inclusion membrane (PIM) based separation using an amic acid extractant, Separation and Purification Technology 214 (2019) 156-161 (https://doi.org/10.1016/j.seppur.2018.04.031).
W Yoshida, Y Baba, F Kubota, SD Kolev, M Goto, Selective transport of scandium(III) across polymer inclusion membranes with improved stability which contain an amic acid carrier, Journal of Membrane Science 572 (2019) 291–299 (https://doi.org/10.1016/j.memsci.2018.11.021)
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2018
F Nitti, MIGS Almeida, R Morrison, RW Cattrall, VJ Pettigrove, RA Coleman, SD Kolev, Development of a portable 3D-printed flow-through passive sampling device free of flow pattern effects, Microchemical Journal 143 (2018) 359-366 (https://doi.org/10.1016/j.microc.2018.08.029)
N Nematollahi, SD Kolev, A Steinemann, Volatile chemical emissions from essential oils,Air Quality, Atmosphere & Health11 (2018) 949-954(https://doi.org/10.1007/s11869-018-0606-0).
Y Zhang, M Miro, SD Kolev, A novel on-line organic mercury digestion method combined with atomic fluorescence spectrometry for automatic mercury speciation, Talanta 189 (2018) 220-224 (https://doi.org/10.1016/j.talanta.2018.06.083).
N Nematollahi, A Doronila, PJ Mornane, A Duan, SD Kolev, A Steinemann, Volatile chemical emissions from fragranced baby products, Air Quality, Atmosphere & Health 11 (2018) 785–790 (https://doi.org/10.1007/s11869-018-0593-1).
AN Ramdzan, MIGS Almeida, MJ McCullough, MA Segundo, SD Kolev, Determination of salivary cotinine as tobacco smoking biomarker, Trends in Analytical Chemistry 105 (2018) 89-97 (https://doi.org/10.1016/j.trac.2018.04.015).
C Specht, RW Cattrall, TG Spassov, MI Spassova, SD Kolev, Controlled In-Situ Gold Nanoparticle Synthesis on Polymer Inclusion Membranes, Reactive and Functional Polymers 130 (2018) 81-89 (https://doi.org/10.1016/j.reactfunctpolym.2018.06.005).
M Sharaf, W Yoshida, F Kubota, SD Kolev, M Goto, A polymer inclusion membrane composed of the binary carrier PC-88A and Versatic 10 for the selective separation and recovery of Sc, RSC Advances 8 (2018) 8631-8637 (https://doi.org/10.1039/c7ra12697b).
D Wang, RW Cattrall, J Li, MIGS. Almeida, GW Stevens, SD Kolev, A comparison of the use of commercial and purified LIX84I in poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP)-based polymer inclusion membranes for the extraction and transport of Cu(II), Separation and Purification Technology 202 (2018) 59–66 (https://doi.org/10.1016/j.seppur.2018.03.037).
YYN Bonggotgetsakul, RW Cattrall, SD Kolev, The effect of surface confined gold nanoparticles in blocking the extraction of nitrate by PVC-based polymer inclusion membranes containing Aliquat 336 as the carrier, Membranes 8 (2018) 6 (https://doi.org/10.3390/membranes8010006).
MR Yaftian, MIGS Almeida, RW Cattrall, SD Kolev, Flow injection spectrophotometric determination of V(V) involving on-line separation using a poly(vinylidene fluoride-co-hexafluoropropylene)-based polymer inclusion membrane, Talanta 181 (2018) 385–391 (https://doi.org/10.1016/j.talanta.2018.01.042).
L O'Connor Šraj, MIGS Almeida, C. Bassett, ID McKelvie, SD Kolev, Gas-diffusion-based passive sampler for ammonia monitoring in marine waters, Talanta 181 (2018) 52-56 (https://doi.org/10.1016/j.talanta.2017.12.076).
M Ershad, MIGS Almeida, TG Spassov, RW Cattrall, SD Kolev, Polymer inclusion membranes (PIMs) containing purified dinonylnaphthalene sulfonic acid (DNNS): performance and selectivity, Separation and Purification Technology 195 (2018) 446–452 (https://doi.org/10.1016/j.seppur.2017.12.037).
Y Zhang, M Miro, SD Kolev, A novel hybrid flow platform for on-line simultaneous dynamic fractionation and evaluation of mercury lability in environmental solids, Talanta 178 (2018) 622–628 (https://doi.org/10.1016/j.talanta.2017.09.084).
MIGS Almeida, BM Jayawardane, SD Kolev, ID McKelvie, Developments of microfluidic paper-based analytical devices (mPADs) for water analysis: A Review, Talanta 177 (2018) 176–190 (https://doi.org/10.1016/j.talanta.2017.08.072).
CF Croft, MIGS Almeida, RW Cattrall, SD Kolev, Separation of lanthanum(III), gadolinium(III) and ytterbium(III) from sulfuric acid solutions by using a polymer inclusion membrane, Journal of Membrane Science545 (2018) 259–265 (https://doi.org/10.1016/j.memsci.2017.09.085).
MR Yaftian, MIGS Almeida, RW Cattrall, SD Kolev, Selective extraction of vanadium(V) from sulfate solutions into a polymer inclusion membrane composed of poly(vinylidenefluoride-co-hexafluoropropylene) and Cyphos® IL 101, Journal of Membrane Science545 (2018) 57–65 (https://doi.org/10.1016/j.memsci.2017.09.058).
Y Cho, RW Cattrall, SD Kolev, A novel polymer inclusion membrane based method for continuous clean-up of thiocyanate from gold mine tailings water, Journal of Hazardous Materials 341 (2018) 297-303 (https://doi.org/10.1016/j.jhazmat.2017.07.069).
2017
Y Zhang, RW Cattrall, SD Kolev, A fast and environmentally friendly microfluidic technique for the fabrication of polymer microspheres, Langmuir 33 (2017) 14691−14698 (https://doi.org/10.1021/acs.langmuir.7b03574).
HJP Alcantara, AI Doronila, SD Kolev, Phytoextraction potential of Manihot esculenta Crantz. (cassava) grown in mercury- and gold-containing biosolids and mine tailings, Minerals Engineering 114 (2017) 57–63 (https://doi.org/10.1016/j.mineng.2017.09.010).
Y O´Bryan, YB Truong, RW. Cattrall, IL. Kyratzis, SD Kolev, Electrospun polystyrene/Aliquat 336 for preconcentration and determination of thiocyanate in flow analysis, Electrospinning 1 (2017) 100–110 (https://doi.org/10.1515/esp-2017-0006).
D Wang, RW Cattrall, J Li, MIGS. Almeida, GW Stevens, SD Kolev, A poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP)-based polymer inclusion membrane (PIM) containing LIX84I for the extraction and transport of Cu(II) from its ammonium sulfate/ammonia solutions, Journal of Membrane Science 542 (2017) 272–279 (https://doi.org/10.1016/j.memsci.2017.08.027).
MIGS Almeida, RW Cattrall, SD Kolev, Polymer inclusion membranes (PIMs) in chemical analysis - A review, Analytica Chimica Acta 987 (2017) 1-14 (https://doi.org/10.1016/j.aca.2017.07.032).
L O'Connor Šraj, MIS Almeida, ID McKelvie, SD Kolev, Determination of trace levels of ammonia in marine waters using a simple environmentally-friendly ammonia (SEA) analyser, Marine Chemistry 194 (2017) 133–145 (https://doi.org/10.1016/j.marchem.2017.06.008).
Y Zhang, M Miro, SD Kolev, An automatic flow assembly for on-line dynamic fractionation of trace level concentrations of mercury in environmental solids with high organic load, Analytica Chimica Acta 975 (2017) 1-10 (https://doi.org/10.1016/j.aca.2017.05.001).
S Kagaya, T Maeno, K Ito, M Gemmei-ide, RW Cattrall, SD Kolev, Improvement of chromium(VI) extraction from acidic solutions using a poly(vinyl chloride)-based polymer inclusion membrane with Aliquat 336 as the carrier, Analytical Sciences 33 (2017) 643-646 (https://doi.org/10.2116/analsci.33.643).
Y O´Bryan, RW Cattrall, YB Truong, IL Kyratzis, SD Kolev, A new generation of highly stable and permeable polymer inclusion membranes (PIMs) with their carrier immobilized in a crosslinked semi-interpenetrating polymer network. Application to the transport of thiocyanate, Journal of Membrane Science 529 (2017) 55-62 (https://doi.org/10.1016/j.memsci.2017.01.057).
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2016
AD Alnuaimi, AN Ramdzan, D Wiesenfeld, NM O’Brien-Simpson, SD Kolev,EC Reynolds, MJ McCullough, Candida virulence and ethanol-derived acetaldehyde production in oral cancer and non-Alur subjects, Oral Diseases 22 (2016) 805-814 (https://doi.org/10.1111/odi.12565).
I Šrámková, B Horstkotte, H Sklenářová, P Solich, SD Kolev, A novel approach to lab-in-syringe - single drop microextraction and on-drop sensing of ammonia, Analytica Chimica Acta 934(2016) 132-144 (https://doi.org/10.1016/j.aca.2016.06.039).
YYN Bonggotgetsakul, RW Cattrall, SD Kolev, Recovery of gold from aqua regia digested electronic scrap using a PVDF-HFP based polymer inclusion membrane (PIM) containing Cyphos® IL 104, Journal of Membrane Science 514 (2016) 274–281 (https://doi.org/10.1016/j.memsci.2016.05.002).
C Agarwal, RW Cattrall, SD Kolev, Donnan dialysis based separation of gold(III) from electronic waste solutions using an anion exchange pore-filled membrane, Journal of Membrane Science 514 (2016) 210–216 (https://doi.org/10.1016/j.memsci.2016.04.033).
Y O´Bryan, RW Cattrall, YB Truong, IL Kyratzis, SD Kolev, The use of poly(vinylidenefluoride-co-hexafluoropropylene) for the preparation of polymer inclusion membranes. Application to the extraction of thiocyanate, Journal of Membrane Science510 (2016) 481–488 (https://doi.org/10.1016/j.memsci.2017.01.057).
AN Ramdzan, MIGS Almeida, MJ McCullough, SD Kolev, Development of a microfluidic paper-based analytical device for the determination of salivary aldehydes, Analytica Chimica Acta 919 (2016) 47-54 (https://doi.org/10.1016/j.aca.2016.03.030).
MIGS Almeida, AML Silva, RA Coleman, VJ Pettigrove, RW Cattrall, SD Kolev, Development of a passive sampler based on a polymer inclusion membrane for total ammonia monitoring in freshwaters, Analytical and Bioanalytical Chemistry 408 (2016) 3213–3222 (https://doi.org/10.1007/s00216-016-9394-2).
S Chatterjee, DG Gour, SD Kolev, RJ Krupadam, Adsorption of carbon dioxide on naturally occurring solid amino acids, Journal of Environmental Chemical Engineering 4 (2016) 3170–3176 (https://doi.org/10.1016/j.jece.2016.06.007).
Y Zhang, ID McKelvie, RW Cattrall, SD Kolev, Colorimetric detection based on localised surface plasmon resonance of gold nanoparticles: merits, inherent shortcomings and future prospects, Talanta 152 (2016) 410-422 (https://doi.org/10.1016/j.talanta.2016.02.015).
W Wongwilai, BM Jayawardane, SD Kolev, K Grudpan, ID McKelvie, Comparison of some modern IT equipment as detectors for microfluidic paper-based determination of phosphate, Chiang Mai Journal of Science 43 (2016) 176-182.
N Ramdzan, L Barreiros, MIG Almeida, SD Kolev, M Segundo, Determination of salivary cotinine through solid phase extraction using a bead-injection lab-on valve approach hyphenated to hydrophilic interaction liquid chromatography, Journal of Chromatography A 1429 (2016) 284-291 (https://doi.org/10.1016/j.chroma.2015.12.051).
SP Best, SD Kolev, J Gabriel, RW Cattrall, Polymerization effects in the extraction of Co(II) into polymer inclusion membranes containing Cyanex 272. Structural studies of the Cyanex 272 - Co(II) complex, Journal of Membrane Science 497 (2016) 377–386 (https://doi.org/10.1016/j.memsci.2015.09.046).
A Garcia-Rodríguez, C Fontàs, V Matamoros, MIGS Almeida, RW Cattrall, SD Kolev, Development of a polymer inclusion membrane-based passive sampler for monitoring of sulfamethoxazole in natural waters. Minimizing the effect of the flow pattern of the aquatic system, Microchemical Journal 124 (2016) 175-180 (https://doi.org/10.1016/j.microc.2015.08.017).
Y Baba, F Kubota, M Goto, RW Cattrall, SD Kolev, Separation of cobalt(II) from manganese(II) using a polymer inclusion membrane with N-[N,N-di(2-ethylhexyl)aminocarbonylmethyl]glycine (D2EHAG) as the carrier, Journal of Chemical Technology and Biotechnology 91 (2016) 1320-1326 (https://doi.org/10.1002/jctb.4725).
2015
YYN Bonggotgetsakul, RW Cattrall, SD Kolev, Extraction of gold(III) from hydrochloric acid solutions with a PVC-based polymer inclusion membrane (PIM) containing Cyphos® IL 104, Membranes 5 (2015) 903-914 (https://doi.org/10.3390/membranes5040903).
YYN Bonggotgetsakul, RW Cattrall, SD Kolev, A method for coating a polymer inclusion membrane with a monolayer of palladium nanoparticles, Reactive & Functional Polymers 97 (2015) 30–36 (https://doi.org/10.1016/j.reactfunctpolym.2015.10.003).
EA Nagul, ID McKelvie, SD Kolev, The nature of the salt error in the Sn(II)-reduced molybdenum blue reaction for determination of dissolved reactive phosphorus in saline waters, Analytica Chimica Acta 896 (2015) 120-127 (https://doi.org/10 .1016/j.aca.2015.09.021).
EA Nagul, ID McKelvie, P Worsfold, SD Kolev, The molybdenum blue reaction for the determination of orthophosphate revisited: Opening the black box, Analytica Chimica Acta890 (2015) 60-82 (https://doi.org/10.1016/j.aca.2015.07.030).
C Zhang, GJ Clark, PWG Sale, W Liu, AI Doronila, SD Kolev, C Tang, Succulent species differ substantially in their tolerance and phytoextraction when grown in the combination of Cd, Cr, Cu, Mn, Ni, Pb and Zn, Environmental Science and Pollution Research 22 (2015) 18824–18838 (https://doi.org/10.1007/s11356-015-5046-x).
HJP Alcantara, AI Doronila, M Nicolas, SD Ebbs, SD Kolev, Growth of selected plant species in biosolids-amended mine tailings, Minerals Engineering 80 (2015) 25–32 (http://dx.doi.org/10.1016/j.mineng.2015.06.012).
A Garcia-Rodríguez, V Matamoros, SD Kolev, C Fontàs, Development of a polymer inclusion membrane (PIM) for the preconcentration of antibiotics in environmental water samples, Journal of Membrane Science 492 (2015) 32–39 (https://doi.org/10.1016/j.memsci.2015.05.037).
II Timofeeva, AV Bulatov, AL Moskvin, SD Kolev, A gas-diffusion flow injection method coupled with online solid-liquid extraction for the determination of ammonium in solid samples, Talanta 142 (2015) 140-144 (https://doi.org/10.1016/j.talanta.2015.04.051).
BM Jayawardane, ID McKelvie, SD Kolev, Development of a gas diffusion µPAD for determination of ammonia in wastewater sample, Analytical. Chemistry 87 (2015) 4621-4626 (https://doi.org/10.1021/acs.analchem.5b00125).
Y Zhang, M Miro, SD Kolev, Hybrid flow system for automatic dynamic fractionation and speciation of inorganic arsenic in environmental solids, Environmental Science & Technology 49 (2015) 2733-2740 (https://doi.org/10.1021/es505629a).
MIGS Almeida, AML Silva, RWCattrall, SD Kolev, A study of the ammonium ion extraction properties of polymer inclusion membranes containing commercial dinonylnaphthalene sulfonic acid, Journal of Membrane Science 478 (2015) 155-162 (https://dx.doi.org/10.1016/j.memsci.2015.01.005).
K Grudpan, SD Kolev, S Lapanantnopakhun, ID McKelvie, W Wongwilai, Applications of everyday IT and communications devices in modern analytical chemistry: A Review, Talanta 136 (2015) 84-94 (https://dx.doi.org/10.1016/j.talanta.2014.12.042).
Z Zhu, JJ Lu, MIGS Almeida, Q Pu, SD Kolev, S Liu, A microfabricated electroosmotic pump coupled to a gas-diffusion microchip for flow injection analysis of ammonia, Microchimica Acta 182 (2015) 1063-1070 (10.1007/s00604-014-1410-7).
EA Nagul, ID McKelvie, SD Kolev, The use of on-line UV photoreduction in the flow analysis determination of dissolved reactive phosphate in natural waters, Talanta 133 (2015) 155-161 (https://dx.doi.org/10.1016/j.talanta.2014.07.058).
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2014
MIGS Almeida, C Chan, VJ Pettigrove, RW Cattrall, SD Kolev, Development of a passive sampler for zinc(II) in urban waters using a polymer inclusion membrane, Environmental Pollution 193 (2014) 233-239 (http://dx.doi.org/10.1016/j.envpol.2014.06.040).
BA Korde, M Ashokkumar, SD Kolev, RJ Krupadam, Novel molecular imprinted polymeric microspheres for pre-concentration and preservation of polycyclic aromatic hydrocarbons from environmental samples, Analytical and Bioanalytical Chemistry 406 (2014) 5313-5321 (http://dx.doi.org/10.1007/s00216-014-7952-z).
T Ohshima, S Kagaya, M Gemmei-Ide, RW Cattrall, SD Kolev, The use of a polymer inclusion membrane as a sorbent for online preconcentration in the flow injection determination of thiocyanate impurity in ammonium sulfate fertilizer, Talanta 129(2014) 560-564 (http://dx.doi.org/10.1016/j.talanta.2014.06.029).
BM Jayawardane, W Shen, ID McKelvie, SD Koleva, Microfluidic paper-based analytical device (μPAD) for the determination of nitrite and nitrate, Analytical Chemistry 86 (2014) 7274-7279 (https://doi.org/10.1021/ac5013249).
L O’Connor Šraj, MIGS Almeida, SE Swearer, SD Kolev,ID McKelvie, Analytical challenges and advantages of using flow-based methodologies for ammonia determination in estuarine and marine waters, Trends in Analytical Chemistry 59 (2014) 83-92 (http://dx.doi.org/10.1016/j.trac.2014.03.012).
C Fontàs, R Vera, A Batalla, SD Kolev, E Anticó, A novel low-cost detection method for screening of arsenic in groundwater, Environmental Science and Pollution Research 21 (20) (2014) 11682-11688 (http://dx.doi.org/10.1007/s11356-014-2917-5).
CA Henderson, EA Nagul, SD Kolev, TA Smith, Imaging chemical extraction by polymer inclusion membranes using fluorescence microscopy, Methods and Applications in Fluorescence 2 (2014) 024008 (http://dx.doi.org/10.1088/2050-6120/2/2/024008).
BM Jayawardane, W Wongwilai, K Grudpan, SD Kolev, MW Heaven, DM Nash, ID McKelvie, Evaluation and application of a paper-based device for the determination of reactive phosphate in soil waters, Journal of Environmental Quality 43 (2014) 1081-1085 (http://dx.doi.org/10.2134/jeq2013.08.0336).
C Lomonte, Y Wang, A Doronila, D Gregory, AJM Baker, R Siegele, SD Kolev, Study of the spatial distribution of mercury in roots of vetiver grass(Chrysopogon zizanioides)by micro-PIXE spectrometry, International Journal of Phytoremediation 16 (2014) 1170-1182 (http://dx.doi.org/10.1080/15226514.2013.821453).
AI Doronila, LE Maddox, SM Reichman, SD Kolev, IE Woodrow, Vegetation response of Australian native grass species redgrass (Bothriochloa macra (Steudel) S.T.Blake) and spider grass (Enteropogon acicularis (Lindl.) Lazarides) in saline and arsenic contaminated gold mine tailings: A glasshouse study, Minerals Engineering 56 (2014) 61-69 (http://dx.doi.org/10.1016/j.mineng.2013.10.025).
2013
W Boonjob, M Miró, SD Kolev, On-line speciation analysis of inorganic arsenic in complex environmental aqueous samples by pervaporation sequential injection analysis, Talanta 117 (2013) 8-13 (http://dx.doi.org/10.1016/j.talanta.2013.08.032).
BM Jayawardane, LdlC Coo, RW Cattrall, SD Kolev, The use of a polymer inclusion membrane in a paper-based sensor for the selective determination of Cu(II), Analytica Chimica Acta 803 (2013) 106-112 (http://dx.doi.org/10.1016/j.aca.2013.07.029).
EA Nagul, C Fontàs, ID McKelvie, RW Cattrall, SD Kolev, The use of a polymer inclusion membrane for separation and preconcentration of orthophosphate in flow analysis, Analytica Chimica Acta 803 (2013) 82-90 (http://dx.doi.org/10.1016/j.aca.2013.07.052).
AM St John, RW Cattrall, SD Kolev, Determination of the permeability and initial flux of polymer inclusion membranes, Separation and Purification Technology 116 (2013) 41-45 (http://dx.doi.org/10.1016/j.seppur.2013.05.021).
AN Ramdzan, PJ Mornane, MJ McCullough, W Mazurek, SD Kolev, Determination of acetaldehyde in saliva by gas-diffusion flow injection analysis, Analytica Chimica Acta 786 (2013) 70-77 (http://dx.doi.org/10.1016/j.aca.2013.05.021).
T Maseko, DL Callahan, FR Dunshea, AI Doronilla, SD Kolev, K Ng, Chemical characterization and speciation of organic selenium in cultivated selenium-enriched Agaricus bisporus, Food Chemistry 141(2013) 3681-3687 (http://dx.doi.org/10.1016/j.foodchem.2013.06.027).
H Sulistyarti, SD Kolev, Online ligand exchange in the determination of Weak Acid Dissociable (WAD) cyanide by gas diffusion-flow injection analysis, Microchemical Journal 111 (2013) 103–107 (http://dx.doi.org/10.1016/j.microc.2013.01.008).
Y Miyake, H Ishida, S Tanaka, SD Kolev, Theoretical analysis of the pseudo-second order kinetic model of adsorption. Application to the adsorption of Ag(I) to mesoporous silica microspheres functionalized with thiol groups, Chemical Engineering Journal 218 (2013) 350-357 (http://dx.doi.org/10.1016/j.cej.2012.11.089).
YYN Bonggotgetsakul, RW Cattrall, SD Kolev, A method for the coating of a polymer inclusion membrane with a monolayer of silver nanoparticles, Journal of Membrane Science 428 (2013) 142-149 (http://dx.doi.org/10.1016/j.memsci.2012.09.061).
SD Kolev, AM St John, RW Cattrall, Mathematical modelling of the extraction of uranium(VI) into a polymer inclusion membrane composed of PVC and di-(2-ethylhexyl) phosphoric acid, Journal of Membrane Science 425-426 (2013) 169-175 (http://dx.doi.org/10.1016/j.memsci.2012.08.050).
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2012
BM Jayawardane, ID McKelvie, SD Kolev, A paper–based device for measurement of reactive phosphate in water, Talanta 100 (2012) 454-460 (http://dx.doi.org/10.1016/j.talanta.2012.08.021).
S Kagaya, Y Ryokan, RW Cattrall, SD Kolev, Stability studies of poly(vinyl chloride)-based polymer inclusion membranes containing Aliquat 336 as a carrier, Separation and Purification Technology 101 (2012) 69-75 (http://dx.doi.org/10.1016/j.seppur.2012.09.007).
DL Callahan, U Roessner, V Dumontet, AM De Livera, A Doronilla, AJM Baker, SD Kolev, Elemental and metabolite profiling of nickel hyperaccumulators from New Caledonia, Phytochemistry 81 (2012) 80-89 (http://dx.doi.org/10.1016/j.phytochem.2012.06.010).
MIGS Almeida, RW Cattrall, SD Kolev, Recent trends in extraction and transport of metal ions using polymer inclusion membranes (PIMs), Journal of Membrane Science 415-416 (2012) 9-23 (http://dx.doi.org/10.1016/j.memsci.2012.06.006).
LL Zhang, RW Cattrall, M Ashokkumar, SD Kolev, On-line extractive separation in flow injection analysis based on polymer inclusion membranes. A study on membrane stability and approaches for improving membrane permeability, Talanta 97 (2012) 382-387 (http://dx.doi.org/10.1016/j.talanta.2012.04.049).
ID McKelvie. SD Kolev, PJ Worsfold, More with Less: Advances in flow and paper-based monitoring of nutrients in aquatic systems, Pure and Applied Chemistry 84 (2012) 1973-1982 (http://dx.doi.org/10.1351/PAC-CON-11-12-04).
AM St John, RW Cattrall, SD Kolev, Transport and separation of uranium(VI) by a polymer inclusion membrane based on di-(2-ethylhexyl) phosphoric acid, Journal of Membrane Science 409-410 (2012) 242-250 (http://dx.doi.org/10.1016/j.memsci.2012.03.061).
B Jimmy, SD Kolev, S Kentish, M Ashokkumar, A novel approach for enhancing metal ion separation using acoustic nebulisation, Ultrasonics Sonochemistry 19 (2012) 435-439 (http://dx.doi.org/10.1016/j.ultsonch.2011.10.014).
2011
Y Zhang, ID McKelvie, RW Cattrall, SD Kolev, Gold, a potential substitute for platinum group metals in automobile catalytic converters, Gold Bulletin 44 (2011) 145-153 (http://dx.doi.org/10.1007/s13404-011-0025-6).
SD Ebbs, SD Kolev, RCR Piccinin, IE Woodrow, Initial loss of cyanide, thiocyanate, and thiosulfate adjuvants following amendment to an oxidic gold ore, Minerals Engineering 24 (2011) 1641-1643 (http://dx.doi.org/10.1016/j.mineng.2011.08.016).
R Güell, E Anticó, S D Kolev, J Benavente, V Salvadó, C Fontàs, Development and characterization of polymer inclusion membranes for the separation and speciation of inorganic As species, Journal of Membrane Science 383 (2011) 88-95 (http://dx.doi.org/10.1016/j.memsci.2011.08.037).
S Kagaya, RW Cattrall, SD Kolev, Solid phase extraction of cobalt(II) from lithium chloride solutions using a poly(vinyl chloride) based polymer inclusion membrane with Aliquat 336 as the carrier, Analytical Sciences 27 (2011) 653-657 (http://dx.doi.org/10.2116/analsci.27.653).
AM St John, SP Best, Y Wang, MJ Tobin, L Puskar, R Siegele RW Cattralla, SD Kolev, Micrometer-scale 2-D mapping of the composition and homogeneity of polymer inclusion membranes, Australian Journal of Chemistry 64 (2011) 930-938 (http://dx.doi.org/10.1071/CH10458).
YYN Bonggotgetsakul, RW Cattrall, SD Kolev, The preparation of a gold nanoparticle monolayer on the surface of a polymer inclusion membrane using EDTA as the reducing agent, Journal of Membrane Science 379 (2011) 322-329 (http://dx.doi.org/10.1016/j.memsci.2011.06.003).
C Lomonte, A Doronilla, D Gregory, AJM Baker, SD Kolev, Chelate-assisted phytoextraction of mercury in biosolids, Science of the Total Environment 409 (2011) 2685-2692 (http://dx.doi.org/10.1016/j.scitotenv.2011.03.037).
LL Zhang, RW Cattrall, SD Kolev, The use of a polymer inclusion membrane in flow injection analysis for the on-line separation and determination of zinc, Talanta 84 (2011) 1278-1283 (http://dx.doi.org/10.1016/j.talanta.2011.01.033).
Y Cho, C Xu, RW Cattrall, SD Kolev, A polymer inclusion membrane for extracting thiocyanate from weakly alkaline solutions, Journal of Membrane Science 367 (2011) 85-90 (http://dx.doi.org/10.1016/j.memsci.2010.10.040).
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2010
YYN Bonggotgetsakul, M Ashokkumar, RW Cattrall, SD Kolev, The use of sonication to increase extraction rate in polymer inclusion membranes. An application to the extraction of gold(III), Journal of Membrane Science 365 (2010) 242-247 (http://dx.doi.org/10.1016/j.memsci.2010.09.013).
AM St John, RW Cattrall, SD Kolev, Extraction of uranium(VI) from sulfate solutions using a polymer inclusion membrane containing di-(2-ethylhexyl) phosphoric acid, Journal of Membrane Science 364 (2010) 354-361 (http://dx.doi.org/10.1016/j.memsci.2010.08.039).
SD Kolev, TJ Cardwell, RW Cattrall, L dlC Coo, Mathematical modeling of a Nafion membrane based optode incorporating 1-(2’-pyridylazo)-2-naphthol under flow injection conditions, Talanta 82 (2010) 1156-1163 (http://dx.doi.org/10.1016/j.talanta.2010.06.027).
SD Ebbs, SD Kolev, RCR Piccinin, IE Woodrow, AJM Baker, Solubilization of heavy metals from gold ore by adjuvants used during gold phytomining, Minerals Engineering 23 (2010) 819-822 (http://dx.doi.org/10.1016/j.mineng.2010.06.002).
C Lomonte, C Sgherri, AJM Baker, SD Kolev, F. Navari-Izzo, Antioxidative response of Atriplex codonocarpa to mercury, Environmental and Experimental Botany 69 (2010) 9-16 (http://dx.doi.org/10.1016/j.envexpbot.2010.02.012).
C Lomonte, J Fritsche, E Bramanti, A Doronilla, D Gregory, AJM Baker, SD Kolev, Assessment of the pollution potential of mercury-contaminated biosolids, Environmental Chemistry 7 (2010) 146-152 (http://dx.doi.org/10.1071/EN09105).
Y Sakai, K Kadota, T Hayashita, RW Cattrall, SD Kolev, The effect of the counter anion on the transport of thiourea in a PVC-based polymer inclusion membrane using Capriquat as carrier, Journal of Membrane Science 346 (2010) 250-255 (http://dx.doi.org/10.1016/j.memsci.2009.09.038).
C Lomonte, AI Doronila, D Gregory, AJM Baker, SD Kolev, Phytotoxicity of biosolids and screening of selected plant species with potential for mercury phytorextraction, Journal of Hazardous Materials 173 (2010) 494-501 (http://dx.doi.org/10.1016/j.jhazmat.2009.08.112).
2009
T Rupasinghe, TJ Cardwell, RW Cattrall, SD Kolev, Determination of arsenic in industrial samples by pervaporation flow injection with amperometric detection, Analytica Chimica Acta 652(2009) 266-271 (http://dx.doi.org/10.1016/j.aca.2009.04.039).
M O’Rourke, RW Cattrall, SD Kolev, ID Potter, The extraction and transport of organic molecules using polymer inclusion membranes, Solvent Extraction Research and Development, Japan 16 (2009) 1-12 (no doi).
SD Kolev, PRLV Fernandes, D Satinsky, P Solich, Highly sensitive gas-diffusion sequential injection analysis based on flow manipulation, Talanta 79 (2009) 1021-1025 (http://dx.doi.org/10.1016/j.talanta.2009.02.014).
SD Kolev, Y Baba, RW Cattrall, T Tasaki, N Pereira, JM Perera, GW Stevens, Solid phase extraction of zinc(II) using a PVC-based polymer inclusion membrane with di(2-ethylhexyl)phosphoric acid (D2EHPA) as the carrier, Talanta 78 (2009) 795-799 (http://dx.doi.org/10.1016/j.talanta.2008.12.047).
N Pereira, A St John, RW Cattrall, JM Perera, SD Kolev, Influence of the composition of polymer inclusion membranes on their homogeneity and flexibility, Desalination 236 (2009) 327-333 (http://dx.doi.org/10.1016/j.desal.2007.10.083).
2008
C Lomonte, D Gregory, AJM Baker, SD Kolev, Comparative study of hotplate wet digestion methods for the determination of mercury in biosolids, Chemosphere 72 (2008) 1420-1424 (http://dx.doi.org/10.1016/j.chemosphere.2008.05.033).
SD Ebbs, RCR Piccinin, JQD Goodger, SD Kolev, IE Woodrow, AJM Baker, Transport of ferrocyanide by two eucalypt species and sorghum. International Journal of Phytoremediation 10 (2008) 343-357. (http://dx.doi.org/10.1080/15226510802096242)
DL Callahan, U Roessner, V Dumontet, N Perrier, AG Wedd, RAJ O’Hair, AJM Baker, SD Kolev, LC–MS and GC–MS metabolite profiling of nickel(II) complexes in the latex of the nickel-hyperaccumulating tree Sebertia acuminate and identification of methylated aldaric acid as a new nickel(II) ligand, Phytochemistry 69 (2008) 240-251 (http://dx.doi.org/10.1016/j.phytochem.2007.07.001).
BJ George, N Pereira, M Al Massum, SD Kolev, M Ashokkumar, Sensitivity enhancement in membrane separation flow injection analysis by ultrasound, Ultrasonics Sonochemistry 15 (2008) 151-156 (http://dx.doi.org/10.1016/j.ultsonch.2007.03.005).
2007
DL Callahan, SD Kolev, RAJ O’Hair, DE Salt, AJM Baker, Relationships of nicotianamine and other amino acids with nickel, zinc and iron in Thlaspi hyperaccumulators, New Phytologist 176 (2007) 836-848 (http://dx.doi.org/10.1111/j.1469-8137.2007.02216.x).
RCR Piccinin, SD Ebbs, SM Reichman, SD Kolev, IE Woodrow, AJM Baker, A screen of some native Australian flora and exotic agricultural species for their potential application in cyanide-induced phytoextraction of gold, Minerals Engineering 20 (2007) 1327-1330 (http://dx.doi.org/10.1016/j.mineng.2007.07.005).
P Mornane, J van den Haak, TJ Cardwell, RW Cattrall, PK Dasgupta, SD Kolev, Thin layer distillation for matrix isolation in flow analysis, Talanta 72 (2007) 741-746 (http://dx.doi.org/10.1016/j.talanta.2006.12.002).
C Lomonte, M Currell, RJS Morrison, ID McKelvie, SD Kolev, Sensitive and ultra-fast determination of arsenic(III) by gas-diffusion flow injection analysis with chemiluminescence detection, Analytica Chimica Acta 583 (2007) 72-77 (http://dx.doi.org/10.1016/j.aca.2006.09.049).
N Amini, SD Kolev, Gas-diffusion flow injection determination of Hg(II) with chemiluminescence detection, Analytica Chimica Acta 582 (2007) 103-108 (http://dx.doi.org/10.1016/j.aca.2006.09.002).
AH Blitz-Raith, R Paimin, RW Cattrall, SD Kolev Separation of cobalt(II) from nickel(II) by solid-phase extraction into Aliquat 336 chloride immobilized in poly(vinyl chloride), Talanta 71 (2007) 419-423 (http://dx.doi.org/10.1016/j.talanta.2006.04.017).
2006
LD Nghiem, P Mornane, ID Potter, JM Perera, RW Cattrall, SD Kolev, Extraction and transport of metal ions and small organic compounds using polymer inclusion membranes (PIMs), Journal of Membrane Science 281 (2006) 7-41 (https://doi.org/10.1016/j.memsci.2006.03.035).
Y Baba, K Ohe, Y Kawasaki, SD Kolev, Adsorption of mercury(II) from hydrochloric acid solutions on glycidylmethacrylate-divinylbenzene microspheres containing amino groups, Reactive & Functional Polymers 66 (2006) 1158-1164 (https://doi.org/10.1016/j.reactfunctpolym.2006.02.005).
DL Callahan, AJM Baker, SD Kolev, AG Wedd, Metal ion ligands in hyperaccumulating plants, Journal of Biological Inorganic Chemistry 11 (2006) 2-12 (https://doi.org/10.1007/s00775-005-0056-7).
2005
S Satienperakul, TJ Cardwell, SD Kolev, CE Lenehan, NW Barnett, A sensitive procedure for the rapid determination of arsenic(III) by flow injection analysis and chemiluminescence detection, Analytica Chimica Acta 554 (2005) 25-30 (https://doi.org/10.1016/j.aca.2005.08.025).
N Amini, TJ Cardwell, RW Cattrall, S Kolev, Determination of mercury(II) at trace levels by gas-diffusion flow injection analysis with amperometric detection, Analytica Chimica Acta 539 (2005) 203-207 (https://doi.org/10.1016/j.aca.2005.02.071).
2004
N Amini, TJ Cardwell, RW Cattrall, RJS Morrison, SD Kolev, On-line determination of mercury(II) by membrane separation flow injection analysis, Talanta 63 (2004) 1069-1075 (https://doi.org/10.1016/j.talanta.2004.01.014).
T Rupasinghe, TJ Cardwell, RW Cattrall, ID Potter, SD Kolev, Determination of arsenic by pervaporation-flow injection hydride generation and permanganate spectrophotometric detection, Analytica Chimica Acta 510 (2004) 225-230 (https://doi.org/10.1016/j.aca.2004.01.006).
S Satienperakul, TJ Cardwell, RW Cattrall, ID McKelvie, DM Taylor, SD Kolev, Determination of carbon dioxide in gaseous samples by gas diffusion-flow injection, Talanta 62 (2004) 631-636 (https://doi.org/10.1016/j.talanta.2003.09.008).
2003
L Wang, TJ Cardwell, MD. Luque de Castro, RW Cattrall, SD Kolev, Determination of ammonia in beers by pervaporation flow injection analysis and spectrophotometric detection, Talanta 60 (2003) 1269-1275 (https://doi.org/10.1016/S0039-9140(03)00235-2).
S Satienperakul, SY Sheikheldin, TJ Cardwell, RW Cattrall, MD Luque de Castro, I.D. McKelvie, SD Kolev, Pervaporation-flow injection analysis of phenol after on-line derivatisation to phenyl acetate Analytica Chimica Acta 485 (2003) 37-42 (https://doi.org/10.1016/S0003-2670(03)00393-3).
SD Kolev, Coupled diffusion of multiple ionic species in ion-exchange membranes with fixed ionic groups, Separation Science and Technology 38 (2003) 237-245 (https://doi.org/10.1081/SS-120016708).
2002
TJ Sands, TJ Cardwell, RW Cattrall, JR Farrell, PJ Iles, SD Kolev, A highly versatile stable optical sensor based on 4-decyloxy-2-(2-pyridylazo)-1-naphthol in Nafion for the determination of copper, Sensors and Actuators B 85 (2002) 33-41 (https://doi.org/10.1016/S0925-4005(02)00047-3).
2001
Y Baba, K Hoaki, JM Perera, GW Stevens, TJ Cardwell, RW Cattrall, SD Kolev, Separation of palladium(II) from copper(II) acidic solutions using PVC membranes containing D2EHPA, Comptes Rendus de L Academie Bulgare des Sciences 54 (2001) 69-72.
T Rupasinghe, TJ Cardwell, MD Luque de Castro, RW Cattrall, SD Kolev, Pervaporation flow injection determination of arsenic based on hydride generation and the Molybdenum Blue reaction, Analytica Chimica Acta 445 (2001) 229-238 (https://doi.org/10.1016/S0003-2670(01)01256-9).
SY Sheikheldin, TJ Cardwell, MD Luque de Castro, RW Cattrall, SD Kolev, Determination of Henry’s law constants of phenols by pervaporation-flow injection analysis, Environmental Science and Technology, 35 (2001) 178-181 (https://doi.org/10.1021/es001406e).
LdlC Coo, TJ Cardwell, RW Cattrall, SD Kolev, Study of the formation constant of the 1-(2’-pyridylazo)-2-naphthol-copper(II) complex in acidic aqueous solutions, Comptes Rendus de L Academie Bulgare des Sciences 54 (2001) 49-52.
2000
DT Newcombe, TJ Cardwell, RW Cattrall, SD Kolev, An optical redox chemical sensor for the determination of ascorbic acid, Laboratory Robotics and Automation 12 (2000) 200-204.
SD Kolev, LdlC Coo, TJ Cardwell, RW Cattrall, Study of the reduction of 1-(2’-pyridylazo)-2-naphthol in different ethanol-water solutions, Electroanalysis 12 (2000) 841-845 (https://doi.org/10.1002/1521-4109(200007)12:11<841::AID-ELAN841>3.0.CO;2-X).
L Wang, R Paimin, RW Cattrall, S Wei, SD Kolev, The extraction of cadmium(II) and copper(II) from hydrochloric acid solutions using an Aliquat 336/PVC membranes, Journal of Membrane Science 176 (2000) 105-111 (https://doi.org/10.1016/S0376-7388(00)00436-1).
Y Sakai, RW Cattrall, R Paimin, ID Potter, SD Kolev, Transport of thiourea through an Aliquat 336/PVC membrane, Separation Science and Technology 35 (2000) 1979-1900 (https://doi.org/10.1081/SS-100102084).
SY Sheikheldin, TJ Cardwell, MD Luque de Castro, RW Cattrall, SD Kolev, Determination of phenol in water by pervaporation-flow injection analysis, Analytica Chimica Acta 419 (2000) 9-16 (https://doi.org/10.1016/S0003-2670(00)00991-0).
L Wang, TJ Cardwell, MD Luque de Castro, RW Cattrall, SD Kolev, Pervaporation-flow injection determination of ammonia in the presence of surfactants, Analytica Chimica Acta 416 (2000) 177-184 (https://doi.org/10.1016/S0003-2670(00)00901-6).
SD Kolev, RW Cattrall, R Paimin, ID Potter, Y Sakai, Theoretical and experimental study of palladium(II) extraction into Aliquat 336/PVC membranes, Analytica Chimica Acta 413 (2000) 241-246 (https://doi.org/10.1016/S0003-2670(00)00811-4).
SD Kolev, M Adam, C Dücsö, I Bársony, C Cobianu, A. van den Berg, Thermal modelling of a porous silicon-based pellistor-type catalytic flammable gas sensor with two supporting beams, Microelectronics Journal 31 (2000) 339-342 (https://doi.org/10.1016/S0026-2692(99)00139-1).
1999
M Dumitrescu, C Cobianu, D Lungu, D Dascalu, A Pascu, S Kolev, A. van den Berg, Thermal simulation of surface micromachined polysilicon hot plates of low power consumption, Sensors and Actuators A 76 (1999) 51-56.
DT Newcombe, TJ Cardwell, RW Cattrall, SD Kolev, An optical redox chemical sensor based on Ferroin immobilised in NafionÒ membranes, Analytica Chimica Acta401 (1999) 137-144.
DT Newcombe, TJ Cardwell, RW Cattrall, SD Kolev, Dissociation of Ferroin in acidic solutions and Nafion membranes, Analytica Chimica Acta395 (1999) 27-32.
LdlC Coo, TJ Cardwell, RW Cattrall, SD Kolev, Study of the extraction of 1-(2’-pyridylazo)-2-naphthol from different ethanol-water solutions into Nafionâ membranes, Analytica Chimica Acta 392 (1999) 201-211.
H Sulistyarti, TJ Cardwell, MD Luque de Castro, SD Kolev, On-line determination of cyanide in the presence of sulfide by flow injection with pervaporation, Analytica Chimica Acta390 (1999) 133-139.
LdlC Coo, M Sadek, RTC Brownlee, TJ Cardwell, RW Cattrall, SD Kolev, Determination of the diffusion coefficient of 1-(2’-pyridylazo)-2-naphthol in ethanol-water solutions using flow injection and nuclear magnetic resonance techniques, Analytica Chimica Acta 386 (1999) 137-144.
1998
SD Kolev, CWK Chow, DE Davey, DE Mulcahy, Mathematical modelling of potentiometric stripping analysis. Chemical stripping in quiet solutions, Analytica Chimica Acta 377 (1998) 13-19.
SD Kolev, M Adam, I Bársony, A van den Berg, C Cobianu, Mathematical modelling of porous silicon based pellistor-type catalytic flammable gas sensors, Microelectronics Journal 29 (1998) 235-239.
LdlC Coo, TJ Cardwell, RW Cattrall, SD Kolev, Spectrophotometric study of the solubility and protolytic properties of 1-(2-pyridylazo)-2-naphthol in different ethanol-water solutions, Analytica Chimica Acta360 (1998) 153-159.
DT Newcombe, TJ Cardwell, RW Cattrall, SD Kolev, Mathematical modelling of 1,10-phenanthroline extraction into Nafionâ 117 membranes, Journal of Membrane Science 141 (1998) 155-164.
G Argiropoulos, RW Cattrall, IC Hamilton, SD Kolev, R Paimin, The study of a membrane for extracting gold(III) from hydrochloric acid solutions, Journal of Membrane Science 138(1998) 279-285.
1997
SD Kolev, G Argiropoulos, RW Cattrall, IC Hamilton, R Paimin, Mathematical modelling of membrane extraction of gold(III) from hydrochloric acid solutions, Journal of Membrane Science 137(1997) 261-269.
H Sulistyarti, TJ Cardwell, SD Kolev, Determination of cyanide as tetracyanonickelate(II) by flow injection and spectrophotometric detection, Analytica Chimica Acta357 (1997) 103-109.
JCT Eijkel, W Olthuis, SD Kolev, P Bergveld, Measuring Donnan-related phenomena using a solid-state ion sensor and a concentration-step method, Journal of Membrane Science 127 (1997) 203-221.
1996
CWK Chow, SD Kolev, DE Davey, DE Mulcahy, Determination of copper in natural waters by batch and oscillating flow injection stripping potentiometry, Analytica Chimica Acta330 (1996) 79-87.
SD Kolev, CWK Chow, DE Davey, DE Mulcahy, Mathematical modelling of potentiometric stripping analysis in mechanically stirred solutions, Analytica Chimica Acta329(1996) 1-14.
1995
SD Kolev, CWK Chow, DE Davey, DE Mulcahy, Oscillation flow injection potentiometry, Analytica Chimica Acta309 (1995) 293-299.
SD Kolev, Mathematical modelling of flow-injection systems, Analytica Chimica Acta308 (1995) 36-66.
1994
SD Kolev, WE van der Linden, W Olthuis, P Bergveld, Mathematical modelling and optimisation of a coulometric sensor-actuator system based on three-dimensional diffusion, Analytica Chimica Acta285 (1994) 247-263.
1993
SD Kolev, JHM Simons, WE van der Linden, Mathematical modelling of the chronoamperometric response of an array of rectangular microelectrodes, Analytica Chimica Acta273 (1993) 71-80.
SD Kolev, WE van der Linden, Application of Laplace transforms for the solution of transient mass- and heat-transfer problems in flow systems, International Journal of Heat and Mass Transfer 36 (1993) 135-139.
1992
SD Kolev, WE van der Linden, Mathematical modelling of flow-injection system with membrane separation module, Analytica Chimica Acta 268 (1992) 7-27.
SD Kolev, WE van der Linden, Analysis of transient laminar mass transfer in a parallel-plate dialyser, Analytica Chimica Acta 257 (1992) 331-342.
SD Kolev, WE van der Linden, Influence of the main parameters of a parallel-plate dialyser under laminar flow conditions, Analytica Chimica Acta 257 (1992) 317-329.
SD Kolev, WE van der Linden, Limits of mass-transfer in parallel-plate dialysers, Analytica Chimica Acta 256 (1992) 301-305.
1991
SD Kolev, WE van der Linden, Laminar dispersion in parallel plate sections of flow systems used in analytical chemistry and chemical engineering, Analytica Chimica Acta 247 (1991) 51-60.
SD Kolev, A Riós, MD Luque de Castro, M Valcárcel, Determination of rate constants and reaction orders with an open-closed flow-injection configuration, Talanta 38 (1991) 125-132.
SD Kolev, G Nagy, E Pungor, Mathematical modelling of single-line flow-injection analysis system with single-layer enzyme electrode detection. Part 3. Experimental verification of the model, Analytica Chimica Acta 254 (1991) 167-175.
1990
SD Kolev, G Nagy, E Pungor, Mathematical modelling of single-line flow-injection analysis system with single-layer enzyme electrode detection. Part 2. Simulation of the mathematical model, Analytica Chimica Acta 241 (1990) 55-69.
SD Kolev, G Nagy, E.Pungor, Mathematical modelling of single-line flow-injection analysis system with single-layer enzyme electrode detection. Part 1. Development of the mathematical model, Analytica Chimica Acta 241 (1990) 43-53.
K Tóth, E Lindner, E Pungor, SD Kolev, Flow-injection approach for the determination of the dynamic response characteristics of ion-selective electrodes. Part 2. Application to tubular solid-state iodide electrode, Analytica Chimica Acta 234 (1990) 57-65.
SD Kolev, K Tóth, E Lindner, E Pungor, Flow-injection approach for the determination of the dynamic response characteristics of ion-selective electrodes. Part 1. Theoretical considerations, Analytica Chimica Acta 234 (1990) 49-56.
SD Kolev, Solution of mathematical models of flow systems used in analytical chemistry and process analysis in the case of slug and time injection, Analytica Chimica Acta 229 (1990) 183-189.
1989
LN Nikolov, SD Kolev, Hydrodynamic study of a rotating biological disk reactor based on the flow exchange tanks-in-series model, Hungarian Journal of Industrial Chemistry 17 (1989) 185-190.
1988
M Koleva, S Ninov, S Kolev, Biodegradation of polysaccharides by enzymes. I. Spectrophotometric determination of monosaccharides with thymol in concentrated sulfuric acid, Biotechnology and Biotechnics 6 (1988) 32-35.
MI Koleva, SZ Ninov, SD Kolev, Spectrophotometric determination of monosaccharides with thymol in concentrated sulphuric acid, Comptes Rendus de L Academie Bulgare des Sciences 41 (1988) 39-42.
SD Kolev, E Pungor, Influence of the main parameters of single-line flow-injection systems without chemical reaction on the output signal. Part 2. Simulation of the mathematical models, Analytica Chimica Acta 208 (1988) 133-149.
SD Kolev, E Pungor, Influence of the main parameters of single-line flow-injection systems without chemical reaction on the output signal. Part 1. Dispersion characteristics of the main sections of the flow system, Analytica Chimica Acta 208 (1988) 117-132.
SD Kolev, E Pungor, Mathematical modeling of single-line flow-injection analysis systems without chemical reaction, Analytical Chemistry 60 (1988) 1700-1709.
1987
SD Kolev, E Pungor, End effects in flow-analysis and process systems, Talanta 34 (1987) 1009-1014.
SD Kolev, E Pungor, Unsteady motion in single-line flow-injection systems, Analytica Chimica Acta 201 (1987) 109-116.
SD Kolev, LN Nikolov, Numerical solution of the flow exchange tanks-in-series model by means of Laplace transforms, Hungarian Journal of Industrial Chemistry 15 (1987) 333-339.
LN Nikolov, SD Kolev, Investigation of the type of flow pattern in a rotating biological disc reactor, Chemical and Biochemical Engineering Quarterly 1 (1987) 39-41.
SD Kolev, E Pungor, Numerical solution of hydraulic models based on the axially-dispersed plug flow model by Laplace transforms, Analytica Chimica Acta 194 (1987) 61-75.
1986
SD Kolev, E Pungor, Description of an axially-dispersed plug flow model for the flow pattern in elements of fluid systems, Analytica Chimica Acta 185 (1986) 315-319.