Determination of copper at wide range concentrations using instrumental features of high-resolution continuum source flame atomic absorption spectrometry

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorLima, Renata Toledo-
Autor(es): dc.creatorRaposo, Jorge Luiz-
Autor(es): dc.creatorVirgílio, Alex-
Autor(es): dc.creatorNeto, José Anchieta Gomes-
Data de aceite: dc.date.accessioned2025-08-21T21:44:19Z-
Data de disponibilização: dc.date.available2025-08-21T21:44:19Z-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2010-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.26850/1678-4618EQJ.V35.4.2010.P87-92-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/233684-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/233684-
Descrição: dc.descriptionThis work describes a method to determine Cu at wide range concentrations in a single run without need of further dilutions employing high-resolution continuum source flame atomic absorption spectrometry. Different atomic lines for Cu at 324.754 nm, 327.396 nm, 222.570 nm, 249.215 nm and 224.426 nm were evaluated and main figures of merit established. Absorbance measurements at 324.754 nm, 249.215 nm and 224.426 nm allows the determination of Cu in the 0.07 – 5.0 mg L-1, 5.0 – 100 mg L-1 and 100 – 800 mg L-1 concentration intervals respectively with linear correlation coefficients better than 0.998. Limits of detection were 21 µg L-1, 310 µg L-1 and 1400 µg L-1 for 324.754 nm, 249.215 nm and 224.426 nm, respectively and relative standard deviations (n = 12) were £2.7%. The proposed method was applied to water samples spiked with Cu and the results were in agreement at a 95% of confidence level (paired t-test) with those obtained by line-source flame atomic absorption spectrometry.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionUnesp Univ Estadual Paulista Institute of Chemistry, P.O. Box 355-
Descrição: dc.descriptionUnesp Univ Estadual Paulista Institute of Chemistry, P.O. Box 355-
Formato: dc.format87-92-
Idioma: dc.languageen-
Relação: dc.relationEcletica Quimica-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCopper-
Palavras-chave: dc.subjectHR-CS FAAS-
Palavras-chave: dc.subjectWide range determination-
Título: dc.titleDetermination of copper at wide range concentrations using instrumental features of high-resolution continuum source flame atomic absorption spectrometry-
Tipo de arquivo: dc.typevídeo-
Aparece nas coleções:Repositório Institucional - Unesp

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