The use of Zincon for preconcentration and determination of Zinc by flame atomic absorption spectrometry

dc.creatorDe Martino, MG
dc.creatorMacarovscha, GT
dc.creatorCadore, S
dc.date2010
dc.dateSEP
dc.date2014-11-17T20:08:46Z
dc.date2015-11-26T17:42:00Z
dc.date2014-11-17T20:08:46Z
dc.date2015-11-26T17:42:00Z
dc.date.accessioned2018-03-29T00:23:50Z
dc.date.available2018-03-29T00:23:50Z
dc.identifierAnalytical Methods. Royal Soc Chemistry, v. 2, n. 9, n. 1258, n. 1262, 2010.
dc.identifier1759-9660
dc.identifierWOS:000282612800011
dc.identifier10.1039/c0ay00178c
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/72626
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/72626
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/72626
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1287169
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionA method for the determination of zinc using zincon as an enrichment agent and flame atomic absorption spectrometry was developed. The system consists of a glass column containing 200 mg of Dowex 1X8 resin modified with 1% (w/w) of zincon. The recovery of the metal was quantitative at pH 7.0 to 8.0 with the use of a potassium dihydrogen-phosphate/sodium hydroxide buffer solution. The colored complex was eluted from the column with 10.0 mL of a 0.1 mol L(-1) HNO(3) solution. Using these conditions an enrichment factor of 25 and at least 15 re-utilizations of the column were possible. The limit of determination was 1.7 mu g L(-1) and a relative standard deviation of 1.2% was obtained, calculated from 10 measurements. The foreign ions effect was studied and the system showed no significant interferences. The accuracy was ascertained by using certified reference material and the results obtained were in agreement with the certified values. The proposed method was successfully used for the determination of zinc in fruit juices.
dc.description2
dc.description9
dc.description1258
dc.description1262
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageen
dc.publisherRoyal Soc Chemistry
dc.publisherCambridge
dc.publisherInglaterra
dc.relationAnalytical Methods
dc.relationAnal. Methods
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectCopper
dc.subjectCobalt
dc.subjectExtraction
dc.subjectComplexes
dc.subjectBeverages
dc.subjectManganese
dc.subjectSorbent
dc.subjectCadmium
dc.subjectSamples
dc.subjectMetals
dc.titleThe use of Zincon for preconcentration and determination of Zinc by flame atomic absorption spectrometry
dc.typeArtículos de revistas


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