DEVELOPMENT OF A CHEMICALLY MODIFIED ELECTRODE BASED ON CARBON PASTE AND FUNCTIONALIZED SILICA-GEL FOR PRECONCENTRATION AND VOLTAMMETRIC DETERMINATION OF MERCURY(II)

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorAleixo, L. M.-
Autor(es): dc.creatorSouza, MDB-
Autor(es): dc.creatorGodinho, OES-
Autor(es): dc.creatorNeto, G. D.-
Autor(es): dc.creatorGushikem, Y.-
Autor(es): dc.creatorMoreira, J. C.-
Data: dc.date2014-05-20T15:20:56Z-
Data: dc.date2014-05-20T15:20:56Z-
Data: dc.date1993-01-08-
Data de aceite: dc.date.accessioned2014-11-17T16:48:31Z-
Data de disponibilização: dc.date.available2014-11-17T16:48:31Z-
Data de envio: dc.date.issued2014-11-17-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/0003-2670(93)80561-X-
Fonte completa do material: dc.identifierAnalytica Chimica Acta. Amsterdam: Elsevier B.V., v. 271, n. 1, p. 143-148, 1993.-
Fonte completa do material: dc.identifier0003-2670-
Fonte completa do material: dc.identifierhttp://base.repositorio.unesp.br/handle/11449/32129-
Fonte completa do material: dc.identifier10.1016/0003-2670(93)80561-X-
Fonte completa do material: dc.identifierWOS:A1993KG79600017-
Fonte: dc.identifier.urihttp://www.educapes.capes.gov.br/handle/capes/58283-
Fonte: dc.identifier.urihttp://www.educapes.capes.gov.br/handlecapes/58283-
Descrição: dc.descriptionA mercury-sensitive chemically modified electrode (CME) based on modified silica gel-containing carbon paste was developed. The functional group attached to the silica gel surface was 3-(2-thiobenzimidazolyl)propyl, which is able to complex mercury ions. This electrode was applied to the determination of mercury(II) ions in aqueous solution. The mercury was chemically preconcentrated on the CME prior to voltammetric determination by anodic stripping in the differential-pulse mode. A calibration graph covering the concentration range from 0.08 to 2 mg l-1 was constructed. The precision for six determinations of 0.122 and 0.312 mg l-1 Hg(II) was 3.2 and 2.9% (relative standard deviation), respectively. The detection limit for a 5-min preconcentration period was 0.013 mg l-1. A study for foreign ions was also made.-
Formato: dc.format143-148-
Idioma: dc.languageeng-
Publicador: dc.publisherElsevier B.V.-
Relação: dc.relationAnalytica Chimica Acta-
Direitos: dc.rightsclosedAccess-
Palavras-chave: dc.subjectVOLTAMMETRY-
Palavras-chave: dc.subjectCARBON PASTE ELECTRODES-
Palavras-chave: dc.subjectCHEMICALLY MODIFIED ELECTRODES-
Palavras-chave: dc.subjectFUNCTIONALIZED SILICA GEL-
Palavras-chave: dc.subjectMERCURY-
Palavras-chave: dc.subjectPRECONCENTRATION-
Título: dc.titleDEVELOPMENT OF A CHEMICALLY MODIFIED ELECTRODE BASED ON CARBON PASTE AND FUNCTIONALIZED SILICA-GEL FOR PRECONCENTRATION AND VOLTAMMETRIC DETERMINATION OF MERCURY(II)-
Tipo de arquivo: dc.typeoutro-
Aparece nas coleções:Repositório Institucional - Unesp

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