A flow-injection-ICP system sequential multielemental analysis with simultaneously mercury(II) preconcentration step

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dc.contributor.authorZara, L. F.
dc.contributor.authorRocha, J. C.
dc.contributor.authorMilani, M. R.
dc.contributor.authorRosa, André Henrique [UNESP]
dc.contributor.authordos Santos, A.
dc.contributor.authorSerudo, R. L.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Catolica Brasilia
dc.contributor.institutionUniv Rio Grande
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2014-05-20T15:24:12Z
dc.date.available2014-05-20T15:24:12Z
dc.date.issued2003-01-01
dc.description.abstractA flow-injection system for multielemental analysis with a mercury(II) preconcentration step using a resin Chelite-S(R)(Serva Feinbiochemica Heidelberg, Part No. 41709) packed minicolumn by inductively coupled plasma atomic emission spectroscopy is described. A mercury reductive elution procedure with a mixture of SnCl2/HCl was used, which allows use of 6 mol/L HCl solution instead of concentrated hydrochoric acid. The main parameters related to ICP operation, such as radio frequency power (950-1750 W), auxiliary argon flow (0.0-1.5 L/min) and spray chamber nebulizer pressure (15-35 psi), were studied. Optimization of the FIA system was reached by defining the best eluent carrier stream (1.4-2.8 mL/min), Hgdegrees carrier stream (10-40 mL min(-1)), loading time (0.5-4.0 min), sample flow rate (1.25-10.0 mL/min), temperature of reactor gas liquid separator (GLS) (25-75 degreesC) and eluent volume (50-350 muL). Throughput is around 30 samples per hour for analytical solutions within the range 50-2500 ng Hg(II)/L. Results from certified material showed good precision (RSD < 3%, n = 12) and no statistical difference was observed for real samples analyzed by AAS and by the proposed system.en
dc.description.affiliationUNESP, Inst Quim, BR-14800900 Araraquara, SP, Brazil
dc.description.affiliationUniv Catolica Brasilia, Brasilia, DF, Brazil
dc.description.affiliationUniv Rio Grande, Rio Grande, RS, Brazil
dc.description.affiliationUSP, IQSC, Inst Quim, Sao Carlos, SP, Brazil
dc.description.affiliationUnespUNESP, Inst Quim, BR-14800900 Araraquara, SP, Brazil
dc.format.extent781-795
dc.identifierhttp://dx.doi.org/10.1081/AL-120018799
dc.identifier.citationAnalytical Letters. New York: Marcel Dekker Inc., v. 36, n. 4, p. 781-795, 2003.
dc.identifier.doi10.1081/AL-120018799
dc.identifier.issn0003-2719
dc.identifier.orcid0000-0002-2042-018X
dc.identifier.urihttp://hdl.handle.net/11449/34847
dc.identifier.wosWOS:000182435800005
dc.language.isoeng
dc.publisherMarcel Dekker Inc
dc.relation.ispartofAnalytical Letters
dc.relation.ispartofjcr1.206
dc.relation.ispartofsjr0,344
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectmultielemental analysispt
dc.subjectChelite (R) S resinpt
dc.subjectFIApt
dc.subjectcold vapor-ICP-AESpt
dc.titleA flow-injection-ICP system sequential multielemental analysis with simultaneously mercury(II) preconcentration stepen
dc.typeArtigo
dcterms.licensehttp://journalauthors.tandf.co.uk/permissions/reusingOwnWork.asp
dcterms.rightsHolderMarcel Dekker Inc
unesp.author.lattes5228846314663888[4]
unesp.author.orcid0000-0002-2042-018X[4]

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