Multivariate optimization of ultrasound-assisted liquid-liquid microextraction based on two solvents for cadmium preconcentration prior to determination by flame atomic absorption spectrometry

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniv Estadual Sudoeste Bahia-
Autor(es): dc.contributorUniversidade Federal da Bahia (UFBA)-
Autor(es): dc.contributorUniv Estadual Santa Cruz-
Autor(es): dc.contributorUniv Fed Alagoas-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniv Fed Parana-
Autor(es): dc.creatorFerreira, Vanessa Jesus-
Autor(es): dc.creatorJesus, Marina Santos de-
Autor(es): dc.creatorSantos, Mayara Costa dos-
Autor(es): dc.creatorGuedes, Wesley N. [UNESP]-
Autor(es): dc.creatorLemos, Valfredo A.-
Autor(es): dc.creatorNovaes, Cleber G.-
Autor(es): dc.creatorCosta, Floriatan Santos-
Autor(es): dc.creatorPacheco, Clissiane S. Viana-
Autor(es): dc.creatorSilva, Erik Galvao Paranhos da-
Autor(es): dc.creatorAmorim, Fabio Alan Carqueija-
Data de aceite: dc.date.accessioned2022-02-22T00:58:02Z-
Data de disponibilização: dc.date.available2022-02-22T00:58:02Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-01-13-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1039/d0ay02030c-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/209937-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/209937-
Descrição: dc.descriptionA method based on ultrasound-assisted emulsification liquid-liquid microextraction (USAEME) for cadmium determination by flame atomic absorption spectrometry (FAAS) was developed in this work. USAEME is based on the use of the mixture of 1,2-dichloroethane and trichloroethylene as an acceptor phase, 2-(2-bromo-5-pyridylazo)-5(diethylamino)phenol (Br-PADAP) as a chelating reagent, and ethanol as a dispersive solvent. The composition of the extraction and dispersive solvents, the volume of the extraction solvent, pH, and the sonication time were optimized using the multivariate strategy. The limits of detection and quantification calculated under optimum conditions were, respectively, 0.39 and 1.33 mu g L--1,L- and the obtained enrichment factor was 21. The accuracy was tested by the analysis of certified reference materials. The method was applied to cadmium determination in bivalve mollusks, water, and urban wastewater from Pontal Bay, Bahia, Brazil. The proposed method is simple, fast, and efficient, and uses small amounts of organic solvents for the determination of cadmium.-
Descrição: dc.descriptionFundacAo de Amparo a Pesquisa do Estado da Bahia (FAPESB)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFinanciadora de Estudos e Projetos (FINEP)-
Descrição: dc.descriptionUniversidade Estadual de Santa Cruz (UESC)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionUniv Estadual Sudoeste Bahia, Dept Chem & Exact, BR-45206190 Jequie, BA, Brazil-
Descrição: dc.descriptionUniv Fed Bahia, Dept Analyt Chem, Inst Chem, BR-40170280 Salvador, BA, Brazil-
Descrição: dc.descriptionUniv Estadual Santa Cruz, Dept Exact & Technol Sci, BR-45662900 Ilheus, BA, Brazil-
Descrição: dc.descriptionUniv Fed Alagoas, Inst Chem & Biotechnol, BR-57072970 Maceio, AL, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Dept Analyt Chem, BR-14800060 Araraquara, SP, Brazil-
Descrição: dc.descriptionUniv Fed Bahia, Inst Nacl Ciencia & Tecnol Energia & Ambiente, BR-40170290 Salvador, BA, Brazil-
Descrição: dc.descriptionUniv Fed Parana, Dept Chem, BR-81530900 Curitiba, PR, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Dept Analyt Chem, BR-14800060 Araraquara, SP, Brazil-
Descrição: dc.descriptionCAPES: 001-
Formato: dc.format267-273-
Idioma: dc.languageen-
Publicador: dc.publisherRoyal Soc Chemistry-
Relação: dc.relationAnalytical Methods-
???dc.source???: dc.sourceWeb of Science-
Título: dc.titleMultivariate optimization of ultrasound-assisted liquid-liquid microextraction based on two solvents for cadmium preconcentration prior to determination by flame atomic absorption spectrometry-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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