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Micropotenciometría de cafeína en medio no acuoso utilizando, como electrodo indicador, una película de óxido sobre acero inoxidable 316 (POSAI-316).

Authors :
Saavedra, J. de J. Pérez
Arce, S. Rincón
Coronel, G. Romero
Andrade, A. López
Pérez, M. de los A. Arada
Source :
Revista Cubana de Química. 2004, Vol. 16 Issue 1, p34-38. 5p.
Publication Year :
2004

Abstract

This report documents the evaluation results of POSAI-316 electrode used as an alternative to conventional glass-indicator electrode to measure pH in caffeine's potentiometric micro-titration. The results obtained showed a complete equivalency of POSAI-316 to conventional glass electrode during the titration of caffeine (30, 40 y 50 mg in CH3COOH) with HClO4. [ABSTRACT FROM AUTHOR]

Details

Language :
Spanish
ISSN :
02585995
Volume :
16
Issue :
1
Database :
Academic Search Index
Journal :
Revista Cubana de Química
Publication Type :
Academic Journal
Accession number :
27653452