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Titolo:
Design of background electrolytes for indirect detection of anions by capillary electrophoresis
Autore:
Doble, P; Macka, M; Haddad, PR;
Indirizzi:
Univ Tasmania, Dept Chem, Hobart, Tas 7001, Australia Univ Tasmania Hobart Tas Australia 7001 Chem, Hobart, Tas 7001, Australia
Titolo Testata:
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
fascicolo: 1, volume: 19, anno: 2000,
pagine: 10 - 17
SICI:
0165-9936(200001)19:1<10:DOBEFI>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
ZONE-ELECTROPHORESIS; ION ELECTROPHORESIS; ISOTACHOPHORESIS; SEPARATION; PH;
Keywords:
indirect detection; background electrolyte; photometric detection; indirect;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
24
Recensione:
Indirizzi per estratti:
Indirizzo: Haddad, PR Univ Tasmania, Dept Chem, GPO Box 252-75, Hobart, Tas 7001, Australia Univ Tasmania GPO Box 252-75 Hobart Tas Australia 7001 ustralia
Citazione:
P. Doble et al., "Design of background electrolytes for indirect detection of anions by capillary electrophoresis", TRAC-TREND, 19(1), 2000, pp. 10-17

Abstract

In capillary electrophoresis of inorganic and other low molecular weight anions using indirect photometric detection, the correct design of the background electrolyte can considerably reduce the time needed for method development and can increase the quality of the separation achieved. This articlediscusses the basic steps for development of suitable electrolytes, based on fundamental knowledge of the nature of the analytes and the proposed background electrolyte. Consideration is given to the choice of the absorbing probe used for indirect detection, based on the relative mobilities of the probe and the analytes, and the desired limits of detection. Choice of the electro-osmotic flow modifier and correct buffering protocols are also discussed. Finally, strategies to increase the useful mobility range of the background electrolyte are given, based on matching the mobilities of multipleelectrolyte probes with the mobilities of the analytes. (C) 2000 Elsevier Science B.V. Ail rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 13/08/20 alle ore 14:37:15