Efeito da acidez e de modificadores orgânicos na determinação de metilxantinas: um experimento de cromatografia liquida de alta eficiência (CLAE) empregando otimização uni e multivariada The role of acidity and organic modifiers in the methylxanthines determination: a HPLC experiment

<abstract language="eng">In this work a new experiment using HPLC is proposed in order to explore the role of acidity and the organic modifiers in the determination of methylxanthines in tea and coffee. Multivariate and univariate optimizations of the experimental conditions were use...

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Bibliographic Details
Main Authors: Nádia Machado de Aragão, Márcia Cristina da Cunha Veloso, Marcia Sousa Bispo, Jailson Bittencourt de Andrade
Format: Article
Language:English
Published: Sociedade Brasileira de Química 2009-01-01
Series:Química Nova
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000900044