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	Provedor de dados 116 (1) Autor ALVES,Alane Cangani (1) GODOY,Helena Teixeira (1) MEINHART,Adriana Dillenburg (1) TEIXEIRA FILHO,José (1) Palavra-chave Added ingredients (1) Capillary electrophoresis (1) Multivariate optimization (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2019 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Development of a method for simultaneous analysis of caffeine and taurine in energy drinks by micellar electrokinetic chromatography with diode-array detector 116 ALVES,Alane Cangani; MEINHART,Adriana Dillenburg; TEIXEIRA FILHO,José; GODOY,Helena Teixeira. Abstract The objective of this study was to develop, optimize and validate a fast and reliable method for the simultaneous determination of caffeine and taurine contents by micellar electrokinetic chromatography with diode array detector, using direct and indirect detection concomitantly. Multivariate statistical techniques were used as a central composite design and the simultaneous optimization method of responses of Derringer and Suich were used for optimization. The method was applied in the analysis of 73 samples of energy drinks commercialized in Brazil. The optimized method employed a capillary tube with an extended bulb of 50 µm i.d. x 72 cm total length, an electrolyte containing 16.20 mmol.L-1 of benzoic acid and 39.90 mmol.L-1 of SDS, a pH value... Tipo: Info:eu-repo/semantics/article Palavras-chave: Multivariate optimization; Added ingredients; Capillary electrophoresis. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000600673 Registros recuperados: 1 Primeira ... 1 ... Última

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