Artículos de revistas
Electrochemical Detection In A Paper-based Separation Device.
Analytical Chemistry. v. 82, n. 3, p. 1162-5, 2010-Feb.
Carvalhal, Rafaela Fernanda
Kfouri, Marta Simão
Piazetta, Maria Helena de Oliveira
Gobbi, Angelo Luiz
Kubota, Lauro Tatsuo
Prototypes of microfluidic paper-based separation devices with amperometric detection were developed and evaluated. Photolithography was used to make a gold electrochemical microcell on polyester and that microcell was coupled to a strip of paper where a chromatographic separation occurs. The device performance was demonstrated with the separation and quantification of uric and ascorbic acid in mixtures. The method provides an analytical alternative for the determination of compounds where low cost and simplicity are essential.821162-5