Analysis of aromatic amines in surface waters receiving wastewater from a textile industry by liquid chromatographic with electrochemical detection

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dc.contributor.authorMazzo, T. M.
dc.contributor.authorSaczk, A. A.
dc.contributor.authorUmbuzeiro, G. A.
dc.contributor.authorZanoni, Maria Valnice Boldrin [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionCETESB
dc.date.accessioned2014-05-20T15:27:28Z
dc.date.available2014-05-20T15:27:28Z
dc.date.issued2006-01-01
dc.description.abstractA high performance liquid chromatography ( HPLC) method with electrochemical detection (ED) was developed for the determination of benzidine, 3,3-dimethylbenzidine, o-toluidine and 3,3-dichlorobenzidine in the wastewater of the textile industry. The aromatic amines were eluted on a reversed phase column Shimadzu Shimpack C-18 using acetonitrile + ammonium acetate (1 x 10(-4) mol L-1) at a ratio 46: 54 v/v as mobile phase, pumped at a flow rate of 1.0 mL min(-1). The electrochemical oxidation of the aromatic amines exhibits well-defined peaks at a potential range of +0.45 to +0.78 V on a glassy carbon electrode. Optimum working potentials for amperometric detection were from 0.70 V to +1.0 V vs. Ag/AgCl. Analytical curves for all the aromatic amines studied using the best experimental conditions present linear relationship from 1 x 10(-8) mol L-1 to 1.5 x 10(-5) mol L-1, r = 0.99965, n = 15. Detection limits of 4.5 nM (benzidine), 1.94 nM (o-toluidine), 7.69 nM (3,3-dimethylbenzidine), and 5.15 nM (3,3-dichlorobenzidine) were achieved, respectively. The detection limits were around 10 times lower than that verified for HPLC with ultra violet detection. The applicability of the method was demonstrated by the determination of benzidine in wastewater from the textile industry dealing with an azo dye processing plant.en
dc.description.affiliationUniv Estadual Paulista, Dept Quim Analit, Inst Quim, BR-14801970 Araraquara, SP, Brazil
dc.description.affiliationCETESB, Div Toxicol Genotoxicidade & Microbiol Ambiental, São Paulo, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Quim Analit, Inst Quim, Araraquara, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Quim Analit, Inst Quim, BR-14801970 Araraquara, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Quim Analit, Inst Quim, Araraquara, SP, Brazil
dc.format.extent2671-2685
dc.identifierhttp://dx.doi.org/10.1080/00032710600824797
dc.identifier.citationAnalytical Letters. Philadelphia: Taylor & Francis Inc., v. 39, n. 14, p. 2671-2685, 2006.
dc.identifier.doi10.1080/00032710600824797
dc.identifier.issn0003-2719
dc.identifier.orcid0000-0002-2296-1393
dc.identifier.urihttp://hdl.handle.net/11449/37439
dc.identifier.wosWOS:000241520300003
dc.language.isoeng
dc.publisherTaylor & Francis Inc
dc.relation.ispartofAnalytical Letters
dc.relation.ispartofjcr1.206
dc.relation.ispartofsjr0,344
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectaromatic aminespt
dc.subjecthigh performance liquid chromatographicpt
dc.subjectelectrochemical detectionpt
dc.subjectbenzidine analysispt
dc.titleAnalysis of aromatic amines in surface waters receiving wastewater from a textile industry by liquid chromatographic with electrochemical detectionen
dc.typeArtigo
dcterms.licensehttp://journalauthors.tandf.co.uk/permissions/reusingOwnWork.asp
dcterms.rightsHolderTaylor & Francis Inc
unesp.author.orcid0000-0002-2296-1393[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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