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Titolo:
Enhancement of conductometric detection of weak acids in ion chromatography
Autore:
Caliamanis, A; McCormick, MJ; Carpenter, PD;
Indirizzi:
RMIT Univ, Dept Appl Chem, Melbourne, Vic 3001, Australia RMIT Univ Melbourne Vic Australia 3001 em, Melbourne, Vic 3001, Australia
Titolo Testata:
JOURNAL OF CHROMATOGRAPHY A
fascicolo: 1-2, volume: 850, anno: 1999,
pagine: 85 - 98
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSTSUPPRESSOR CONVERSION; EXCLUSION CHROMATOGRAPHY; ELUITE ACIDS;
Keywords:
conductometric detection; detection; LC; mobile phase composition; boric acid; weak acids;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Carpenter, PD RMIT Univ, Dept Appl Chem, City Campus,GPO Box 2476V, Melbourne, Vic 3001,Australia RMIT Univ City Campus,GPO Box 2476V Melbourne Vic Australia 3001
Citazione:
A. Caliamanis et al., "Enhancement of conductometric detection of weak acids in ion chromatography", J CHROMAT A, 850(1-2), 1999, pp. 85-98

Abstract

Anions of weak acids can represent a problem when determined via chemically suppressed ion chromatography as the acids can be weakly ionised, giving low conductivity and hence low sensitivity. Previous work showed that converting some weak acids back to their sodium salts, using a second micromembrane suppressor, greatly enhanced conductivity and thus sensitivity. This paper will discuss further work in optimising the conversion for boric acid by using sodium salts of EDTA and the mechanisms involved. (C) 1999 ElsevierScience B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 18:31:58