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Titolo:
POLYETHYLENE-GLYCOL MONOMETHYL ETHER SULFATE-BASED BACKGROUND ELECTROLYTES IN CAPILLARY ELECTROPHORESIS
Autore:
WILLIAMS RL; VIGH G;
Indirizzi:
TEXAS A&M UNIV,DEPT CHEM COLLEGE STN TX 77843 TEXAS A&M UNIV,DEPT CHEM COLLEGE STN TX 77843
Titolo Testata:
Journal of chromatography
fascicolo: 1-2, volume: 744, anno: 1996,
pagine: 75 - 80
Fonte:
ISI
Lingua:
ENG
Soggetto:
ZONE ELECTROPHORESIS; SEPARATIONS; OPTIMIZATION;
Keywords:
BACKGROUND ELECTROLYTE COMPOSITION; (POLYETHYLENE GLYCOL MONOMETHYL ETHER) HYDROGENSULFATES; AMINOCAPROIC ACID; DINITROBENZAMIDOPHENYLALANINE; NITROBENZOIC ACIDS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
14
Recensione:
Indirizzi per estratti:
Citazione:
R.L. Williams e G. Vigh, "POLYETHYLENE-GLYCOL MONOMETHYL ETHER SULFATE-BASED BACKGROUND ELECTROLYTES IN CAPILLARY ELECTROPHORESIS", Journal of chromatography, 744(1-2), 1996, pp. 75-80

Abstract

A homologous series of (polyethylene glycol monomethyl ether) hydrogensulfates has been synthesized, characterized and used as the source of anionic co-ions in mobility-matching background electrolytes designed to eliminate the efficiency-degrading effects of electromigration dispersion. The mobilities of the new anionic co-ions vary in the 5 . 10(-5) to 45 . 10(-5) cm(2)/Vs range in 25 mM mobility-matching background electrolytes, prepared from epsilon-aminocaproic acid and the respective (polyethylene glycol monomethyl ether) hydrogensulfate. It is demonstrated experimentally that the electromigration dispersion-relatedpeak broadening can be minimized and difficult electrophoretic separations can be realized without significant alteration of the separationselectivity when these (polyethylene glycol monomethyl ether) sulfateanions are used as co-ions in mobility-matching background electrolytes.

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Documento generato il 24/09/20 alle ore 10:33:09