Uniwersytet Śląski w Katowicach

Lider zespołu: prof. dr hab. Rafał Sitko

Skład zespołu:

prof. dr hab. Beata Walczak (Scopus, ORCID)
dr hab. Barbara Feist, prof. UŚ (Scopus, ORCID)
dr hab. Katarzyna Pytlakowska, prof. UŚ (Scopus, ORCID)
dr Karina Kocot (Scopus, ORCID)
dr Marcin Musielak

Strona internetowa: http://zcha.us.edu.pl/

Tematyka badań zespołu:

Badania nad nowymi materiałami o właściwościach adsorpcyjnych oraz mechanizmami adsorpcji jonów metali. Badania obejmują głównie nanomateriały nieorganiczne i nanomateriały węglowe (grafen, tlenek grafenu, nanorurki węglowe, pianki grafenowe, fulereny) oraz ich chemiczne modyfikacje mające na celu zwiększenie pojemności adsorpcyjnej lub selektywności w stosunku do wybranych jonów. Opracowanie procedur analitycznych oznaczania oraz specjacji jonów metali z wykorzystaniem atomowej spektrometrii emisyjnej ze wzbudzeniem w plazmie (ICP-OES), atomowej spektrometrii absorpcyjnej z atomizacją w płomieniu (FAAS) i piecu grafitowym (ETAAS), rentgenowskiej spektrometrii fluorescencyjnej z dyspersją energii (EDXRF) i całkowitym odbiciem promieniowania (TXRF). Badania w zakresie chemometrii, w tym opracowanie metody identyfikacji biomarkerów bazującej na analizie topologicznej reszt od modelu klasyfikacyjnego.

Projekty:

• Opracowanie strategii analitycznych i chemometrycznych w celu potwierdzania autentyczności herbaty z czerwonokrzewu i miodokrzewu, Project NCBiR w ramach II konkursu na wspólne polsko-południowoafrykańskie projekty badawcze – „Współpraca Polska-RPA”: PL-RPA2/04/DRHTeas/19, kierownik: Beata Zawisza, 2019-2022.
• Nowe modyfikowane nanomateriały węglowe w śladowej i ultraśladowej rentgenowskiej analizie fluorescencyjnej z całkowitym odbiciem promieniowania, Projekt NCN, OPUS: 2018/31/B/ST4/00041, kierownik: Rafał Sitko, 2019-2022.
• Nowe membrany kompleksujące w adsorpcji i oznaczaniu jonów metali, Projekt NCN, OPUS: 2015/17/B/ST4/03870, kierownik: Rafał Sitko, 2016-2018.
• Grafen, tlenek grafenu i ich pochodne jako nowe sorbenty w nieorganicznej chemii analitycznej, Projekt NCN, OPUS: 2012/07/B/ST4/00568, kierownik: Rafał Sitko, 2013-2015.
• Rentgenowska analiza fluorescencyjna EDXRF z mikrowiązką promieniowania mono- i polikryształów w strukturze spinelowej, Projekt MNiSW: NN204178433, kierownik: Rafał Sitko, 2007–2009.

Współpraca:

• Department of Chemistry, University of Girona, Girona, Hiszpania
• Institute of Earth Sciences “Jaume Almera”, CSIC, Barcelona, Hiszpania
• Institute of Environmental Assessment and Water Research, IDAEA-CSIC, Barcelona, Hiszpania
• Instytut Niskich Temperatur i Badań Strukturalnych, Polska Akademia Nauk, Wrocław
• Instytut Fizyki, Uniwersytet Śląski
• Wydział Nauk Przyrodniczych, Uniwersytet Śląski

Wybrane publikacje:

• 2021
  • R. Sitko, M. Musielak, M. Serda, E. Talik, B. Zawisza, A. Gagor, M. Malecka, Thiosemicarbazide-grafted graphene oxide as superior adsorbent for highly efficient and selective removal of mercury ions from water, Separation and Purification Technology, 254 (2021) 117606, IF=5.774
• 2020
  • K. Pytlakowska, K. Kocot, B. Hachuła, M. Pilch, R. Wrzalik, M. Zubko, Determination of heavy metal ions by energy dispersive X-ray fluorescence spectrometry using reduced graphene oxide decorated with molybdenum disulfide as solid adsorbent, Spectrochimica Acta Part B: Atomic Spectroscopy, 167 (2020) 105846, IF=3.086
  • K. Pytlakowska, K. Kocot, M. Pilch, M. Zubko, Ultrasound-assisted dispersive micro-solid phase extraction using molybdenum disulfide supported on reduced graphene oxide for energy dispersive X-ray fluorescence spectrometric determination of chromium species in water, Microchimica Acta 187 (2020) 542, IF=6.232
  • B. Zawisza, R. Sitko, I. Queralt, E. Margui, A. Gagor, Cellulose mini-membranes modified with TiO 2 for separation, determination, and speciation of arsenates and selenites, Microchimica Acta 187 (2020) 430, IF=6.232
  • Z. Małyjurek, R. Vitale, B. Walczak, Different strategies for class model optimization. A comparative study, Talanta 215 (2020) 120912, IF=5.339
  • A. Viraragavan, N. Hlengwa, D. de Beer, S. Riedel, N. Miller, S. Bowles, B. Walczak, C. Muller, E. Joubert, Model development for predicting in vitro bio-capacity of green rooibos extract based on composition for application as screening tool in quality control, Food & Function 11 (2020) 3084-3094, IF=4.171
  • G. Rabatel, F. Marini, B. Walczak, J.‐M. Roger, VSN: Variable sorting for normalization, Journal of Chemometrics, 34 (2020) e3164 IF=1.633
  • F. Marini, B. Walczak, ANOVA-Target Projection (ANOVA-TP), in: Comprehensive chemometrics: chemical and biochemical data analysis. [Vol. 1], 2nd ed. – Amsterdam : Elsevier, 2020. – S. 495-520.
  • F. Marini, B. Walczak, Particle swarm optimization, in: Comprehensive chemometrics : chemical and biochemical data analysis. [Vol. 1], 2nd ed. – Amsterdam : Elsevier, 2020. – S. 649-666.
  • Comprehensive chemometrics: chemical and biochemical data analysis, four-volume set. Vol. 1-4 / eds. : Steven Brown, Romà Tauler, Beata Walczak. – 2nd ed. – Amsterdam : Elsevier, 2020. – 2944 s.
• 2019
  • M. Musielak, A. Gagor, B. Zawisza, E. Talik, R. Sitko, Graphene oxide/carbon nanotubes membranes for highly efficient removal of metals ions from water, ACS Applied Materials and Interfaces, 11 (2019) 28582-28590, IF = 8.456
  • E. Jamroz, K. Kocot, B. Zawisza, E. Talik, A. Gagor, R. Sitko, A green analytical method for ultratrace determination of hexavalent chromium ions based on micro-solid phase extraction using amino-silanized cellulose membranes, Microchemical Journal 149 (2019) 104060, IF = 3.206
  • K. Pytlakowska, M. Pilch, B. Hachula, J. E. Nycz, K. Kornaus, W. A. Pisarski , Energy dispersive X-ray fluorescence spectrometric determination of copper, zinc, lead and chromium species after preconcentration on graphene oxide chemically modified with mercapto-groups, Journal of Analytical Atomic Spectrometry 34, 2019, 1416-1425, IF = 3.608
  • R. Sitko, B. Zawisza, E. Malicka, Graphene and Derivatives | Sample Handling, in Encyclopedia of Analytical Science (Third Edition), P. Worsfold, C. Poole, A. Townshend, M. Miró (Eds), Elsevier, 2019, pp. 340-343
  • B. Feist, R. Sitko, Fast and sensitive determination of heavy metal ions as batophenanthroline chelates in food and water samples after dispersive micro-solid phase extraction using graphene oxide as sorbent, Microchemical Journal 147 (2019) 30-36, IF = 3.206
  • B. Feist, M. Pilch, J. Nycz, Graphene oxide chemically modified with 5-amino-1,10-phenanthroline as sorbent for separation and preconcentration of trace amount of lead(II), Microchimica Acta 186 (2019) 91, IF = 5.705
  • B. Feist, Comparison of the sorption capacities of 1,10-phenanthroline and 2,2-bipyridyl complexes with cadmium on activated carbon and graphene oxide, Microchemical Journal 145 (2019) 588-595, IF = 2.746
  • D. De Beer, J. Tobin, B. Walczak, M. Van Der Rijst, E. Joubert, Phenolic composition of rooibos changes during simulated fermentation : effect of endogenous enzymes and fermentation temperature on reaction kinetics, Food Research International, 121 (2019) 185-196, IF=4.972
  • N. A. Walters, D. de Beer, A. de Villiers, B. Walczak, E. Joubert, Genotypic variation in phenolic composition of Cyclopia pubescens (honeybush tea) seedling plants, Journal of Food Composition and Analysis, 78 (2019) 129-137, IF=2.78
  • Z. Małyjurek, D. de Beer, E. Joubert, B. Walczak, Working with log-ratios, Analytica Chimica Acta, 1059 (2019) 16-27, IF=5.997
• 2018
  • A. Baranik, R. Sitko, A. Gagor, B. Zawisza, Alumina/nano-graphite composite as a new nanosorbent for the selective adsorption, preconcentration, and determination of chromium in water samples by EDXRF, Analytical and Bioanalytical Chemistry 410 (2018) 7793-7802, IF = 3.307
  • K. Pytlakowska, M. Matussek, B. Hachula, M. Pilch, K. Kornaus, M. Zubko, W. A. Pisarski, Graphene oxide covalently modified with 2,2′-iminodiacetic acid for preconcentration of Cr(III), Cu(II), Zn(II) and Pb(II) from water samples prior to their determination by energy dispersive X-ray fluorescence spectrometry, Spectrochimica Acta Part B 147 (2018) 79-86, IF = 3.241
  • A. Baranik, A. Gagor, I. Queralt, E. Margui, R. Sitko, B. Zawisza, Ceria nanoparticles deposited on graphene nanosheets for adsorption of copper(II) and lead(II) ions and of anionic species of arsenic and selenium, Microchimica Acta 185 (2018) 264, IF = 5.705
  • A. Baranik, A. Gagor, I. Queralt, E. Margui, R. Sitko, B. Zawisza, Determination and speciation of ultratrace arsenic and chromium species using aluminum oxide supported on graphene oxide, Talanta 185 (2018) 264-274, IF = 4.162
  • A. Baranik, R. Sitko, A. Gagor, I. Queralt, E. Margui, B. Zawisza, Graphene oxide decorated with cerium(IV) oxide in determination of ultra-trace metal ions and speciation of selenium, Analytical Chemistry 90 (2018) 4150-4159, IF = 6.320
  • P. Janik, B. Zawisza, E. Talik, R. Sitko, Selective adsorption and determination of hexavalent chromium ions using graphene oxide modified with amino-silanes, Microchimica Acta 185 (2018) 117, IF = 5.705
  • E. Lukojko, E. Talik, A. Gagor, R. Sitko, Highly selective determination of ultratrace inorganic arsenic species using novel functionalized miniaturized membranes, Analytica Chimica Acta, 1008 (2018) 57-65, IF = 5.123
  • B. Feist, R. Sitko, Method for the determination of Pb, Cd, Zn, Mn and Fe in rice samples using carbon nanotubes and cationic complexes of batophenanthroline, Food Chemistry 249 (2018) 38–44, IF = 4.529
  • R.G. Brereton, J. Jansen, J. Lopes, F. Marini, A. Pomerantsev, O. Rodionova, J-M. Roger, B. Walczak, R. Tauler, Chemometrics in analytical chemistry-part II: modeling, validation, and applications, Analytical and Bioanalytical Chemistry 410 (2018) 6691-6704, IF=3.307
• 2017
  • J. Tobin, J. Walach, D. de Beer, P. J. Williams, P. Filzmoser, B. Walczak, Untargeted analysis of chromatographic data for green and fermented rooibos: problem with size effect removal, Journal of Chromatography A, 1525 (2017) 109-115, IF=3.926
  • R. G. Brereton, J. Jansen, J. Lopes, F. Marini, A. Pomerantsev, O. Rodionova, J.M.l Roger, R. Tauler, B. Walczak, A Chemometrics Tutorial (Part 1), Analytical and Bioanalytical Chemistry, 409 (2017) 5891-5899, IF=3.431
  • J. Walach, P. Filzmoser, K. Hron, B. Walczak, L. Najdekr, Robust biomarker identification in a two-class problem based on pairwise log-ratios, Chemometrics and Intelligent Laboratory Systems, 171 (2017) 277-285, IF=2.56
  • F. Marini, D. de Beer, N. A. Walters, A. de Villiers, E. Joubert, B. Walczak, Multivariate analysis of variance of designed chromatographic data. A case study involving fermentation of rooibos tea , Journal of Chromatography A, 1489 (2017) 115-125, IF=3.926
  • S. C. Bosman, D. de Beer, T. Beelders, E. L. Willenburg, C. J. Malherbe, B. Walczak, E. Joubert, Simultaneous optimisation of extraction of xanthone and benzophenone alfa-glucosidase inhibitors from Cyclopia genistoides and identification of superior genotypes for propagation, Journal of Functional Food, 33 (2017) 21-31, IF=3.973
• 2016
  • K. Pytlakowska, Preconcentration of Zn, Cu and Ni ions from coffee infusions via 8-hydroxyquinoline complexes on graphene prior to energy dispersive X-ray fluorescence spectrometry determination, Applied Spectroscopy, 70 (2016) 1891-1899 IF = 1.875
  • R. Sitko, M. Musielak, B. Zawisza, E. Talik, A. Gagor, Graphene oxide/cellulose membranes in adsorption of divalent metal ions, RSC Advances, 6 (2016) 96595-96605, IF = 3.289
  • K. Kocot, K. Pytlakowska, B. Zawisza, R. Sitko, How to detect metal species preconcentrated by microextraction techniques?, TrAC Trends in Analytical Chemistry, 82 (2016) 412-424, IF = 7.487
  • K. Pytlakowska, Graphene-based preconcentration system prior to energy dispersive X-ray fluorescence spectrometric determination of Co, Ni, and Cu ions in wine samples, Food Analytical Methods, 9 (2016) 2270-2279, IF = 1.956
  • K. Pytlakowska, V. Kozik, M. Matussek, M. Pilch, B. Hachuła, K. Kocot, Glycine modified graphene oxide as a novel sorbent for preconcentration of chromium, copper and zinc ions from water samples prior to energy dispersive X-ray fluorescence spectrometric determination, RSC Advances, 6 (2016) 42836-42844, IF = 3.289
  • B. Feist, Selective dispersive micro solid-phase extraction using oxidized multiwalled carbon nanotubes modified with 1,10-phenanthroline for preconcentration of lead ions, Food Chemistry, 209 (2016) 37-42, IF = 3.391
  • K. Pytlakowska, Speciation of inorganic chromium in water samples by energy dispersive X-ray fluorescence spectrometry, Journal of Analytical Atomic Spectrometry, 31 (2016) 968-974, IF = 3.466
  • K. Pytlakowska, Dispersive micro solid-phase extraction of heavy metals as their complexes with 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol using graphene oxide nanoparticles, Microchimica Acta, 183 (2016) 91-99, IF = 4.831
  • B. Zawisza, A. Baranik, E. Malicka, E. Talik, R. Sitko, Preconcentration of Fe(III), Co(II), Ni(II), Cu(II), Zn(II) and Pb(II) with ethylenediamine-modified graphene oxide, Microchimica Acta, 183 (2016) 231-240, IF = 4.831
  • A. Dworak, M. Nykiel, B. Walczak, A. Miazek, D. Szworst-Lupina, B. Zagdanska, M. Kielkiewicz, Maize proteomic responses to separate or overlapping soil drought and two-spoted spider mite stresses, Planta, 244 (2016) 939-960, IF=3.239
• 2015
  • K. Pytlakowska, Energy-Dispersive X-Ray Fluorescence Spectrometric Determination of Phosphate in Water Samples via a 12-Molybdophosphate–Crystal Violet Complex, CLEAN – Soil, Air, Water, 43 (2015) 1475–1480, IF = 1.945
  • R. Sitko, P. Janik, B. Zawisza, E. Talik, E. Margui, I. Queralt, Green approach for ultratrace determination of divalent metal ions and arsenic species using total-reflection X-ray fluorescence spectrometry and mercapto-modified graphene oxide nanosheets as a novel adsorbent, Analytical Chemistry, 87 (2015) 3535-3542, IF = 5.825
  • K. Kocot, R. Leardi, B. Walczak, R. Sitko, Determination and speciation of trace and ultratrace selenium ions by energy-dispersive X-ray fluorescence spectrometry using graphene as solid adsorbent in dispersive micro-solid phase extraction, Talanta, 134 (2015) 360-365, IF = 3.511
  • F. Marini, B. Walczak, Particle Swarm Optimization (PSO). A tutorial, Chemometrics and Intelligent Laboratory Systems, 149 (2015) 153-165, IF=2.321
  • F. Marini, D. de Beer, E. Joubert, B. Walczak, Analysis of variance of designed chromatographic data sets: The analysis of variance-target projection approach, Journal of Chromatography A, 1405 (2015) 94-102, IF=4.169
• 2014
  • R. Sitko, P. Janik, B. Feist, E. Talik, A. Gagor, Suspended aminosilanized graphene oxide nanosheets for selective preconcentration of lead ions and ultrasensitive determination by electrothermal atomic absorption spectrometry, ACS Applied Materials and Interfaces, 6 (2014) 20144-20153, IF = 5.900
  • K. Pytlakowska, M. Dabioch, R. Sitko, Indirect determination of dissolved silicate in surface water using energy-dispersive X-ray fluorescence spectrometry, Analyst 139 (2014) 3911-3917, IF = 3.969
  • R. Sitko, B. Zawisza, E. Talik, P. Janik, G. Osoba, B. Feist, E. Malicka, Spherical silica particles decorated with graphene oxide nanosheets as a new sorbent in inorganic trace analysis, Analytica Chimica Acta, 834 (2014) 22-29, IF = 4.387
  • K. Pytlakowska, Energy-dispersive X-ray spectrometry combined with directly suspended droplet microextraction for determination of dissolved silicate in surface water via silicomolybdenum blue complex, Talanta, 128 (2014) 480-485, IF = 3.498
  • B. Feist, R. Sitko, Preconcentration of trace lead via formation of the bis(2,2-bipyridyl) complex and its adsorption on oxidized multiwalled carbon nanotubes, Microchimica Acta, 181 (2014) 1035-1040, IF = 3.434
  • K. Kocot, R. Sitko, Trace and ultratrace determination of heavy metal ions by energy-dispersive X-ray fluorescence spectrometry using graphene as solid sorbent in dispersive micro solid-phase extraction, Spectrochimica Acta Part, B 94-95 (2014) 7-13, IF = 3.141
  • E. Margui, B. Zawisza, R. Sitko, Trace and ultratrace analysis of liquid samples by X-ray fluorescence spectrometry, TrAC Trends in Analytical Chemistry, 53 (2014) 73-83, IF = 6.351
  • B. Feist, B. Mikula, Preconcentration of heavy metals on activated carbon and their determination in fruits by inductively coupled plasma optical emission spectrometry, Food Chemistry, 147 (2014) 302–306, IF = 3.334
  • B. Feist, B. Mikula, Preconcentration of some metal ions with lanthanum-8-hydroxyquinoline co-precipitation system, Food Chemistry, 147 (2014) 225-229, IF = 3.334
  • P. Filzmoser, B. Walczak, What can go wrong at the data normalization step for identification of biomarkers? J. Chromatography A, 1362 (2014) 194-205, IF = 4.258
  • R. Tauler, F. Marini, B. Walczak, L. Buydens, R. G. Brereton, W. Buchberger, P. J. Worsfold, European Analytical Column No. 42, Chemometrics and analytical chemistry, Analytical and Bioanalytical Chemistry, 406 (2014) 3525-3529, IF = 3.66
  • J. Orzel, M. Daszykowski, M. Kazura, D. Beerb, E. Joubertb, A. E. Schulzec, T. Beeldersc, A. de Villiersd, C. J. Malherbeb, B. Walczak, Modeling of the total antioxidant capacity of rooibos (Aspalathus linearis) tea infusions from chromatographic fingerprintsand identification of potential antioxidant markers , Journal of Chromatography A, 1366 (2014) 101-109, IF = 4.258
• 2013
  • M. Dabioch, A. Kita, P. Zerzucha, K. Pytlakowska, Assessment of elemental contamination in the bottom sediments from a dam reservoir using a sequential extraction technique and chemometric analysis, Central European Journal of Chemistry, 11 (2013) 1981-1995, IF = 1.167
  • B. Zawisza, R. Sitko, E. Malicka, E. Talik, Graphene oxide as a solid sorbent for the preconcentration of cobalt, nickel, copper, zinc and lead prior to determination by energy-dispersive X-ray fluorescence spectrometry, Analytical Methods, 5 (2013) 6425-6430, IF = 1.855
  • K. Pytlakowska, R. Sitko, Energy-dispersive X-ray fluorescence spectrometry combined with dispersive liquid-liquid microextraction for simultaneous determination of zinc and copper in water samples, Analytical Methods, 5 (2013) 6192-6199, IF = 1.855
  • E. Margui, B. Zawisza, R. Skorek, T. Theato, I. Queralt, M. Hidalgo, R. Sitko, Analytical possibilities of different X-ray fluorescence systems for determination of trace elements in aqueous samples pre-concentrated with carbon nanotubes, Spectrochimica Acta Part B, 88 (2013) 192–197, IF = 3.141
  • R. Sitko, B. Zawisza, E. Malicka, Graphene as a new sorbent in analytical chemistry, TrAC Trends in Analytical Chemistry, 51 (2013) 33-43, IF = 6.351
  • K. Pytlakowska, V. Kozik, M. Dabioch, Complex-forming organic ligands in cloud-point extraction of metal ions – a review, Talanta, 110 (2013) 202-228, IF = 3.794
  • B. Zawisza, R. Sitko, Pre-concentration procedure based on chitosan combined with ionic liquid for the determination of cobalt, nickel, and copper in water samples, Applied Spectroscopy, 67 (2013) 536-541, IF = 1.729
  • K. Kocot, B. Zawisza, E. Margui, I. Queralt, M. Hidalgo, R. Sitko, Dispersive micro solid-phase extraction using multiwalled carbon nanotubes combined with portable total-reflection X-ray fluorescence spectrometry for the determination of trace amounts of Pb and Cd in water samples, Journal of Analytical Atomic Spectrometry, 28 (2013) 736-742, IF = 3.220
  • R. Sitko, E. Turek, B. Zawisza, E. Malicka, E. Talik, J. Heimann, A. Gagor, B. Feist, R. Wrzalik, Adsorption of divalent metal ions from aqueous solutions using graphene oxide, Dalton Transactions, 42 (2013) 5682 – 5689, IF = 3.838
  • M. Dabioch, R. Skorek, A. Kita, P. Janoska, K. Pytlakowska, P. Zerzucha, R. Sitko, A study on adsorption of metals by activated carbon in large-scale (municipal) process of surface water purification, Central European Journal of Chemistry, 11 (2013) 742-753, IF = 0.991
  • B. Zawisza, R. Sitko, Electrochemically assisted sorption on oxidized multiwalled carbon nanotubes for preconcentration of Cr, Mn, Co, Ni, Cu and Zn from water samples, Analyst, 138 (2013) 2470-2476, IF = 4.230
  • B. Zawisza, R. Sitko, Micro-electrodeposition in the presence of ionic liquid for the preconcentration of trace amounts of Fe, Co, Ni and Zn from aqueous samples, Spectrochimica Acta Part B, 82 (2013) 60-64, IF = 2.876
  • R. Sitko, B. Gliwinska, B. Zawisza, B. Feist, Ultrasound-assisted solid-phase extraction using multiwalled carbon nanotubes for determination of cadmium by flame atomic absorption spectrometry, Journal of Analytical Atomic Spectrometry, 28 (2013) 405-410, IF = 3.220
  • R. Skorek, B. Zawisza, E. Margui, I. Queralt, R. Sitko, Dispersive micro solid-phase extraction using multiwalled carbon nanotubes for simultaneous determination of trace metal ions by energy-dispersive X-ray fluorescence spectrometry, Applied Spectroscopy, 67 (2013) 204-209, IF = 1.729
  • K. Pytlakowska, Determination of iron in milk infant formulas by using Chromazurol S in the presence of dodecyltrimethylammonium bromide and Brij 35, Journal of Analytical Chemistry, 68 (2013) 223-227, IF = 0.747
  • I. Stanimirova, M. Kazura, D. de Beer, E. Joubert, A.E. Schulze, T. Beelders, A. de Villiers, B. Walczak, High-dimensional nested analysis of variance to assess the effect of production season, quality grade and steam pasteurization on the phenolic composition of fermented rooibos herbal tea, Talanta, 115 (2013) 590-599, IF=3.498
  • I. Stanimirova, M. Daszykowski, B. Walczak, Robust Methods in Analysis of Multivariate Food Chemistry Data. In Federico Marini, editors: Chemometrics in Food Chemistry, Vol 28, DHST, Chennai: Elsevier, 2013, pp. 315-340
  • V. Shapaval, B. Walczak, S. Gognies, T. Moretro, H. P. Suso, A. Wold Asli, A. Belarbie A. Kohler, FTIR spectroscopic characterization of differently cultivated food related yeasts, Analyst, 138 (2013) 4129-4138, IF=3.969
  • P. Zerzucha, M. Kazura, D. de Beer, E. Joubert, A.E. Schulze, T. Beelders, A. de Villiers, B. Walczak, A new concept for variance analysis of hyphenated chromatographic data avoiding signal warping, Journal of Chromatography A, 1291 (2013) 64-72, IF=4.612
• 2012
  • R. Skorek, E. Turek, B. Zawisza, E. Margui, I. Queralt, M. Stempin, P. Kucharski, R. Sitko, Determination of selenium by X-ray fluorescence spectrometry using dispersive solid-phase microextraction with multiwalled carbon nanotubes as solid sorbent, Journal of Analytical Atomic Spectrometry, 27 (2012) 1688-1693, IF = 3.220
  • B. Zawisza, R. Skorek, G. Stankiewicz, R. Sitko, Carbon nanotubes as a solid sorbent for the preconcentration of Cr, Mn, Fe, Co, Ni, Cu, Zn and Pb prior to wavelength-dispersive X-ray fluorescence spectrometry, Talanta, 99 (2012) 918-923, IF = 3.794
  • B. Zawisza, R. Sitko, Preconcentration of trace amounts of zinc and copper from water samples onto polystyrene foils prior to determination by wavelength-dispersive X-ray fluorescence spectrometry, Applied Spectroscopy, 66 (2012) 1082-1086, IF = 1.729
  • K. Kocot, B. Zawisza, R. Sitko, Dispersive liquid-liquid microextraction using diethyldithiocarbamate as a chelating agent and the dried-spot technique for the determination of Fe, Co, Ni, Cu, Zn, Se and Pb by energy-dispersive X-ray fluorescence spectrometry, Spectrochimica Acta Part B, 73 (2012) 79-83, IF = 2.876
  • R. Sitko, B. Zawisza, E. Malicka, Modification of carbon nanotubes for preconcentration, separation and determination of trace-metal ions, TrAC Trends in Analytical Chemistry, 37 (2012) 22-31, IF = 6.273
  • K. Pytlakowska, A. Kita, P. Janoska, M. Polowniak, V. Kozik, Multi-element analysis of mineral and trace elements in medicine herbs and their infusions, Food Chemistry, 135 (2012) 494-501, IF = 3.458
  • K. Pytlakowska, R. Sitko, Directly suspended droplet microextraction combined with energy-dispersive X-ray fluorescence spectrometry to determine nano levels of phosphate in surface water, Journal of Analytical Atomic Spectrometry, 27 (2012) 460-465, IF = 4.372
  • R. Sitko, B. Zawisza, Quantification in X-Ray Fluorescence Spectrometry, in X-Ray Spectroscopy, S.K. Sharma (Ed.), InTech, 2012, pp. 137-162 (Open access)
  • B. Feist, B. Mikula, K. Pytlakowska, B. Puzio, R. Sitko, Preconcentration via ion associated complexes combined with inductively coupled plasma optical emission spectrometry for determination of heavy metals, Talanta 88 (2012) 391-395, IF = 3.722
  • J. Orzel, M. Daszykowski, I. Grabowski, G. Zaleszczyk, M. Sznajder, B. Walczak, Simultaneous determination of solvent yellow 124 and solvent red 19 using fluorescence spectroscopy and chemometrics, Talanta, 101 (2012) 78-84, IF=3.794
  • P. Zerzucha, B. Walczak, Concept of (dis)similarity in data analysis, Trends in Analytical Chemistry, 38 (2012) 116-128, IF=6.351
  • P. Zerzucha, B. Walczak, Again about PLS and feature selection, Chemometrics and Intelligent Laboratory Systems, 115 (2012) 9-17, IF=2.291
  • P. Zerzucha, D. Boguszewska, B. Zagdanska, B. Walczak, Non-parametric multivariate analysis of variance in proteomic response of potato to the drought stress, Analytica Chimica Acta, 719 (2012) 1-7, IF=4.387
  • J. Orzel, M. Daszykowski, B. Walczak, Controlling sugar quality on the basis of fluorescence fingerprints using robust calibration, Chemometrics and Intelligent Laboratory Systems, 110 (2012) 89-93, IF=2.291
  • P. Zerzucha, M. Daszykowski, B. Walczak, Dissimilarity partial least squares applied to non-linear modeling problems, Chemometrics and Intelligent Laboratory Systems, 110 (2012) 156-162, IF=2.291
• 2011
  • B. Zawisza, K. Pytlakowska, B. Feist, M. Polowniak, A. Kita, R. Sitko, Determination of rare earth elements by spectroscopic techniques: a review, Journal of Analytical Atomic Spectrometry, 26 (2011) 2373-2390, IF = 4.372
  • B. Zawisza, R. Sitko, Determination of lithium in mineral water samples by X-ray fluorescence spectrometry, Applied Spectroscopy, 10 (2011) 1218-1221, IF = 1.729
  • R. Sitko, K. Kocot, B. Zawisza, B. Feist, K. Pytlakowska, Liquid-phase microextraction as an attractive tool for multielement trace analysis in combination with X-ray fluorescence spectrometry: an example of simultaneous determination of Fe, Co, Zn, Ga, Se and Pb in water samples, Journal of Analytical Atomic Spectrometry, 26 (2011) 1979-1985, IF = 4.372
  • R. Sitko, B. Zawisza, Z. Kowalewska, K. Kocot, M. Polowniak, Fast and simple method for determination of fatty acid methyl esters (FAME) in biodiesel blends using X-ray spectrometry, Talanta, 85 (2011) 2000-2006, IF = 3.722
  • I. Stanimirova, R. Tauler, B. Walczak, A comparison of positive matrix factorization and the weighted multivariate curve resolution method. Application to environmental data, Environmental Science & Technology 45 (2011) 10102-10110, IF=4.825
  • M. Daszykowski, J. Orzel, M.S. Wrobel, H. Czarnik-Matusewicz, B. Walczak, Improvement of classification using robust soft classification rules for near-infrared reflectance spectral data, Chemometrics and Intelligent Laboratory Systems, 109 (2011) 86-93, IF=2.222
  • F. Marini, B. Walczak, Finding relevant clustering directions in high-dimensional data using Particle Swarm Optimization, Journal of Chemometrics, 25 (2011) 366-374, IF=1.377
  • I. Stanimirova, K. Michalik, Z. Drzazga, P.D. Wentzell, B. Walczak, Interpretation of ANOVA models using PCA to assess the effect of a maternal anticancer treatment on the mineralization of rat bones, Analytica Chimica Acta, 689 (2011) 1-7, IF=4.310
  • I. Stanimirova, C. Boucon, B. Walczak, Relating gas chromatographic profiles to sensory measurements describing the end products of the Maillard reaction, Talanta, 83 (2011) 1239-1246, IF=3.722
  • M. Daszykowski, B. Walczak, Methods for the exploratory analysis of two-dimensional chromatographic signals, Talanta, 83 (2011) 1088-1097, IF=3.722