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

Autor:	Nádia Machado de Aragão, Marcia Sousa Bispo, Márcia Cristina da Cunha Veloso, Jailson B. de Andrade
Jazyk:	portugalština
Rok vydání:	2009
Předmět:	Chromatography Chemistry Univariate Mineralogy General Chemistry HPLC High-performance liquid chromatography methylxanthines caffeine
Zdroj:	Química Nova, Volume: 32, Issue: 9, Pages: 2482-2486, Published: 2009 Química Nova v.32 n.9 2009 Química Nova Sociedade Brasileira de Química (SBQ) instacron:SBQ
Popis:	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 used.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc602aca1fcc25c6eb44582f651860e4 http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000900044&lng=en&tlng=en Zobrazit plný text záznamu