Compact disks, a new source for gold electrodes. Application to the quantification of copper by PSA

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorRichter, Eduardo M.-
Autor(es): dc.creatorAugelli, Márcio A. [UNESP]-
Autor(es): dc.creatorMagarotto, Susane-
Autor(es): dc.creatorAngnes, Lúcio-
Data de aceite: dc.date.accessioned2022-08-04T22:01:08Z-
Data de disponibilização: dc.date.available2022-08-04T22:01:08Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2001-07-09-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1002/1521-4109(200105)13:8/9<760-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/219244-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/219244-
Descrição: dc.descriptionIn this work we describe a versatile and very sensitive way for copper quantification by potentiometric stripping analysis using gold electrodes obtained from recordable compact disks (CDs). This new source of electrodes (CDtrodes) shown similar performance to the commercial gold electrodes with superior versatility and lower cost. Recordable CDs contains a highly pure gold film with thickness between 50 and 100 nm and superficial area of ca. 100 cm2. The working electrode developed was used successfully in stationary cell and many experimental parameters have been optimized. For copper, the detection limit attained was 30 ng L-1 (600 s deposition time) with remarkable precision (standard deviation of 1.8 % for 20 repetitive measurements using 25 μg L-1 of copper with 60 s of deposition time). The gold electrode developed was used for analysis of copper in sugar cane spirits and tap water samples. The results were compared with those obtained by atomic absorption spectroscopy.-
Descrição: dc.descriptionInstituto de Química Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, CEP 05508-900 - São Paulo-
Descrição: dc.descriptionFaculdade de Engenharia de Guaratinguetá UNESP, Guaratinguetá-
Descrição: dc.descriptionFaculdade de Engenharia de Guaratinguetá UNESP, Guaratinguetá-
Formato: dc.format760-764-
Idioma: dc.languageen-
Relação: dc.relationElectroanalysis-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBeverages-
Palavras-chave: dc.subjectCD electrodes-
Palavras-chave: dc.subjectCopper-
Palavras-chave: dc.subjectGold electrodes-
Palavras-chave: dc.subjectPotentiometric stripping analysis-
Palavras-chave: dc.subjectSugar cane spirits-
Palavras-chave: dc.subjectTap water-
Título: dc.titleCompact disks, a new source for gold electrodes. Application to the quantification of copper by PSA-
Aparece nas coleções:Repositório Institucional - Unesp

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