CLOUD POINT EXTRACTION/PRECONCENTRATION OF COPPER IONS EXPLOITING THE FORMATION OF COMPLEXES WITH DMIT [4,5-DIMERCAPTO-1,3-DITHYOL-2-THIONATE]

dc.creatorSomera, BF
dc.creatorde Oliveira, FM
dc.creatorBarreto, WJ
dc.creatorBarreto, SRG
dc.creatorTarley, CRT
dc.date2012
dc.date2014-07-30T13:59:56Z
dc.date2015-11-26T16:28:49Z
dc.date2014-07-30T13:59:56Z
dc.date2015-11-26T16:28:49Z
dc.date.accessioned2018-03-28T23:09:53Z
dc.date.available2018-03-28T23:09:53Z
dc.identifierQuimica Nova. Soc Brasileira Quimica, v. 35, n. 8, n. 1600, n. 1605, 2012.
dc.identifier0100-4042
dc.identifierWOS:000308458100020
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/56116
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/56116
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1269570
dc.descriptionCLOUD POINT EXTRACTION/PRECONCENTRATION OF COPPER IONS EXPLOITING THE FORMATION OF COMPLEXES WITH DMIT [4,5-DIMERCAPTO-1,3-DITHYOL-2-THIONATE]. The present study proposes a method for cloud point preconcentration of copper ions at pH 2.0 based on complexes formed with [4,5-dimercapto-1,3-dithyol-2-thionate] and subsequent determination by flame atomic absorption spectrometry (FAAS). Under optimal analytical conditions, the method provided limits of detection of 0.84 and 0.45 mu g L-1, by preconcentrating 12.0 and 24.0 mL of sample, respectively. The method was applied for copper determination in water samples, synthetic saliva, guarana powder, tea samples and soft drinks and the accuracy was assessed by analyzing the certified reference materials Dogfish Liver (DOLT-4) and Lobster Hepatopancreas (TORT-2).
dc.description35
dc.description8
dc.description1600
dc.description1605
dc.languagept
dc.publisherSoc Brasileira Quimica
dc.publisherSao Paulo
dc.publisherBrasil
dc.relationQuimica Nova
dc.relationQuim. Nova
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectcloud point preconcentration
dc.subjectcopper
dc.subjectDMIT [4,5-dimercapto-1,3-dithyol-2-thionate]
dc.subjectAtomic-absorption-spectrometry
dc.subjectWater Samples
dc.subjectFood Samples
dc.subjectExtraction
dc.subjectPreconcentration
dc.subjectNickel
dc.subjectOptimization
dc.subjectSeparation
dc.subjectCadmium
dc.subjectCobalt
dc.titleCLOUD POINT EXTRACTION/PRECONCENTRATION OF COPPER IONS EXPLOITING THE FORMATION OF COMPLEXES WITH DMIT [4,5-DIMERCAPTO-1,3-DITHYOL-2-THIONATE]
dc.typeArtículos de revistas


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