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	Provedor de dados Anais da ABC (AABC) (1) Autor BEZERRA,MARCOS A. (1) CARDOZO,MANUELLE C. (1) CAVALCANTE,DANNUZA D. (1) SANTOS,WALTER N.L. DOS (1) SILVA,DANIEL L.F. (1) Palavra-chave Antimony (1) HG-AFS (1) Hair (1) Leishmaniasis (1) Multivariate optimization (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2016 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Multivariate optimization of a method for antimony determination by hydride generation atomic fluorescence spectrometry in hair samples of patients undergoing chemotherapy against Leishmaniasis Anais da ABC (AABC) CARDOZO,MANUELLE C.; CAVALCANTE,DANNUZA D.; SILVA,DANIEL L.F.; SANTOS,WALTER N.L. DOS; BEZERRA,MARCOS A.. ABSTRACT A method was developed for determination of total antimony in hair samples from patients undergoing chemotherapy against Leishmaniasis based on the administration of pentavalent antimonial drugs. The method is based on microwave assisted digestion of the samples in a pressurized system, reduction of Sb5+ to Sb3+ with KI solution (10% w/v) in ascorbic acid (2%, w/v) and its subsequent determination by hydride generation atomic fluorescence spectrometry (HG-AFS). The proportions of each component (HCl, HNO3 and water) used in the digestion were studied applying a constrained mixtures design. The optimal proportions found were 50% water, 25% HNO3 and 25% HCl. Variables involved in the generation of antimony hydride were optimized using a Doehlert... Tipo: Info:eu-repo/semantics/article Palavras-chave: Leishmaniasis; Antimony; Hair; HG-AFS; Multivariate optimization. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000401179 Registros recuperados: 1 Primeira ... 1 ... Última

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