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Speciation and fractionation of metals (and some metalloids) in water and soil

Grant number: 15/03397-4
Support Opportunities:Regular Research Grants
Duration: August 01, 2015 - July 31, 2017
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal Investigator:Amauri Antonio Menegário
Grantee:Amauri Antonio Menegário
Host Institution: Centro de Estudos Ambientais (CEA). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil
Associated researchers: Carlos Alfredo Suárez ; Didier Gastmans ; José Silvio Govone


This project aims to develop analytical methods based on use of diffusive gradients in thin films technique (DGT) and in the coupling of inductively coupled plasma mass spectrometry (ICP-MS) (and/or atomic fluoresce spectrometry (AFS)) with liquid chromatography (LC) for speciation and fractionation of metal or metalloids in water and soil. In situ methods (based on DGT technique) for chemical fractionation and speciation analyses (or selective determination) in aquatic environment will be developed. This study will focus mainly species of Cd, Ni, Pb, V and Zn. For soils, we aim to develop and apply methods for redox speciation of As based on previous works for water analysis and new approaches involving DGT e DET (diffusive equilibrium in thin films techinique) techniques. The methods based on coupling the LC with ICP-MS will focus in the speciation analysis of Zn in seawater and As in soils. For soils samples, species of As(III) and As(V) will be determined. Main attention will be given to As(V) species since it is related to the herbicide MSMA (monossodium methylarsonate). The studies related to Zn speciation will focus Zn (II) (inorganic Zn) and organic Zn (e.g. some biocides like zinc pyrithione and Zinc diethyldithiocarbamate). Also we will evaluate the possibility to develop new methods for speciation analysis of Hg and Sn. (AU)

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Scientific publications (5)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
TAFURT-CARDONA, MAKENLY; EISMANN, CARLOS EDUARDO; SUAREZ, CARLOS ALFREDO; MENEGARIO, AMAURI ANTONIO; LUKO, KAREN SILVA; SARGENTINI JUNIOR, EZIO. In situ selective determination of methylmercury in river water by diffusive gradient in thin films technique (DGT) using baker's yeast (Saccharomyces cerevisiae) immobilized in agarose gel as binding phase. Analytica Chimica Acta, v. 887, p. 38-44, . (13/09020-4, 15/03397-4)
LUKO, KAREN SILVA; MENEGARIO, AMAURI ANTONIO; SUAREZ, CARLOS ALFREDO; TAFURT-CARDONA, MAKENLY; PEDROBOM, JORGE HENRIQUE; CAVINATO MARCHINI ROLISOLA, ANA MARTA; SULATO, EVERTON TIAGO; KIANG, CHANG HUNG. In situ determination of V(V) by diffusive gradients in thin films and inductively coupled plasma mass spectrometry techniques using amberlite IRA-410 resin as a binding layer. Analytica Chimica Acta, v. 950, p. 32-40, . (15/03397-4)
MENEGARIO, AMAURI ANTONIO; YABUKI, LAUREN N. MARQUES; LUKO, KAREN S.; WILLIAMS, PAUL N.; BLACKBURN, DANIEL M.. Use of diffusive gradient in thin films for in situ measurements: A review on the progress in chemical fractionation, speciation and bioavailability of metals in waters. Analytica Chimica Acta, v. 983, p. 54-66, . (15/50306-4, 15/03397-4)
EISMANN, CARLOS EDUARDO; MENEGARIO, AMAURI ANTONIO; GEMEINER, HENDRYK; WILLIAMS, PAUL NICHOLAS. Predicting Trace Metal Exposure in Aquatic Ecosystems: Evaluating DGT as a Biomonitoring Tool. EXPOSURE AND HEALTH, v. 12, n. 1, p. 19-31, . (15/50306-4, 15/03397-4)
SUAREZ, CARLOS A.; DE SIMONE, THAYS V.; MENEGARIO, AMAURI A.; ROLISOLA, ANA M. C. M.; LUKO, KAREN S.; GASTMANS, DIDIER; DA CONCEICAO, FABIANO T.; KIANG, CHANG H.. In situ redox speciation analysis of chromium in water by diffusive gradients in thin films using a DE81 anion exchange membrane. Talanta, v. 154, p. 299-303, . (15/03397-4)

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