2002 - Instituto de Química - USP

Jorge Cesar MasiniQUÍMICA ANALÍTICA AMBIENTALDuas linhas de pesquisa são estudadas1- Desenvolvimento de metodologias de análisepor injeção seqüencial para monitoramento emtempo real de indicadores de poluição em ambientesaquáticos.2- Interações da matéria orgânica de ocorrêncianatural em solos, águas e sedimentos com cátionsmetálicos, herbicidas e superfícies minerais.SummaryTwo main research areas are being studied in ourlaboratory:1- Development of analytical methodologies automatedby sequential injection analysis for real timemonitoring of pollution indicators in aquatic environments.2- Interactions of natural organic matter occurringin waters, soils and sediments with heavy metalcations, herbicides and mineral surfaces.Publicações:M. Rigobello-Masini, J.C. Masini, Application of modified Gran functionsand derivative methods on data of potentiometric acid titration tostudy the distribution of inorganic carbon species in cultivation mediumof marine microalgae, Analytica Chimica Acta 448 (2001) 239-250.M.S.P. Silva, I.S. da Silva, G. Abate, J.C. Masini, Spectrophotometric determinationof acid volatile sulfide in river sediments by sequential injectionanalysis exploiting the methylene blue reaction, Talanta 53 (2001)843-850.G. Abate, J.C. Masini, Acid Base and complexation properties of a sedimentaryhumic acid. A study on the Barra Bonita reservoir of Tietê river,São Paulo state, Brazil, Journal of the Brazilian Chemical Society 12 (2001)109-116.C.X. Galhardo, J.C. Masini, Sequential Injection analysis as a tool for insitu monitoring Fe(II), Fe(III), NO 3- and NO 2- in natural and waste waters,Analytica Chimica Acta 438 (2001) 39-48.I.S. da Silva, G. Abate, J. Lichtig, J.C. Masini, Heavy metal distribution inrecent sediments of the Tietê –Pinheiros river system in São Paulo state,Brazil, Applied Geochemistry 17 (2002) 105-116.M.S.P. SIlva, J.C. Masini, Exploiting monosegemented flow analysis toperform in-line standard additions using a single stock standard solutionin spectrophotometric sequential injection procedures, Analytica ChimicaActa 466 (2002) 345-352.G. Abate, J. Lichtig, J.C. Masini, Construction and evaluation of a flowthroughcell adapted to a commercial static mercury electrode (SMDE) tostudy the adsorption of Cd(II) and Pb(II) on vermiculite, Talanta 58 (2002)433-443.G. Abate, J.C. Masini, Complexation of Cd(II) and Pb(II) with humic acidsstudied by anodic stripping voltammetry using differential equilibriumfunctions and discrete site models, Organic Geochemistry 33 (2002) 1171-1182.Departamento de Química Fundamental51Instituto de Química - Pesquisa 2001 - 2002