Direct and simultaneous determination of Cd, Cu, and Se in blood samples by graphite furnace atomic absorption spectrometry

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Autor(es): dc.contributorChemistry Department-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorCaldas, Naise Mary-
Autor(es): dc.creatorRaposo, Jorge Luiz-
Autor(es): dc.creatorOliveira, Silvana Ruella-
Autor(es): dc.creatorNeto, José Anchieta Gomes-
Autor(es): dc.creatorBarbosa, Fernando-
Data de aceite: dc.date.accessioned2025-08-21T21:30:26Z-
Data de disponibilização: dc.date.available2025-08-21T21:30:26Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2009-11-26-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/225677-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/225677-
Descrição: dc.descriptionA graphite furnace atomic absorption speclromclric method is proposed for the direct and simultaneous determination of Cd. Cu. and Se in human blood. Samples were diluted 1:10 (v/v) in 0.6% (v/v) UNO3 + 0.6% (v/v) Triton X-100 solution. Tor 12 μL injected sample volume + 6 μL of 1000 mg L-1 Pd(NO3)2+ 3 μL of 1000 mg L-1 Mg(NO3)2. the calculated characteristic masses (mo) were 0.9 pg Cd. 16 pg Cu. and 39 pg Se. which are close to those mo values for single-element conditions for THGA furnace (1.3 pg Cd, 17 pg Cu. and 16 pg Se). Calibration curves with linear correlations better than 0.999 were obtained. The limits of detection (LOD) were 0.03 μg L-1 Cd, 0.075 μg L -1 Cu and 0.3 μg L-1 Se, and the relative standard deviations (n= 12) were 2.6%. 0.3%. and 1.6%. respectively. The method was applied for Cd, Cu, and Se determination in 10 human blood samples and the results were in agreement at the 96% confidence level with those obtained by inductively coupled plasma mass spectrometry. Concentrations of analytes in the selected blood samples varied from 1.7 to 3.2 μg L-1 Cd. 700 to 921.7 μg L-1 Cu. and from 68.6 to 360 μg L-1 Se. The accuracy of the proposed method was also evaluated by an additionrecovery experiment and recoveries of Cd, Cu, and Se added to blood samples ranged from 99-109%. 91-103%. and 93-103%. respectively.-
Descrição: dc.descriptionPiauí Federal University - UFPI Chemistry Department Campus Ministro Petrônio Portella, 64049-550, Teresina-PI-
Descrição: dc.descriptionSão Paulo State University - UNESP Institute of Chemistry Analytical Chemistry Department, P.O. Box 355, 14801-970, Araraquara-SP-
Descrição: dc.descriptionUniversity of São Paulo Faculty of Pharmaceutical Sciences of Ribeirão Preto, 14040-903 Ribeirão Preto-SP-
Descrição: dc.descriptionSão Paulo State University - UNESP Institute of Chemistry Analytical Chemistry Department, P.O. Box 355, 14801-970, Araraquara-SP-
Formato: dc.format115-119-
Idioma: dc.languageen-
Relação: dc.relationAtomic Spectroscopy-
???dc.source???: dc.sourceScopus-
Título: dc.titleDirect and simultaneous determination of Cd, Cu, and Se in blood samples by graphite furnace atomic absorption spectrometry-
Tipo de arquivo: dc.typelivro digital-
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