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Titolo:
PEAK SHAPE DISTORTIONS DURING CAPILLARY ELECTROPHORETIC SEPARATIONS OF MULTICOMPONENT SAMPLES IN 2 CO-ION BUFFERS
Autore:
WILLIAMS RL; CHILDS B; DOSE EV; GUIOCHON G; VIGH G;
Indirizzi:
TEXAS A&M UNIV,DEPT CHEM COLLEGE STN TX 77843 TEXAS A&M UNIV,DEPT CHEM COLLEGE STN TX 77843 TEXAS A&M UNIV,DEPT COMP SCI COLLEGE STN TX 77843 UNIV TENNESSEE,DEPT CHEM KNOXVILLE TN 37996
Titolo Testata:
Journal of chromatography
fascicolo: 1-2, volume: 781, anno: 1997,
pagine: 107 - 112
Fonte:
ISI
Lingua:
ENG
Soggetto:
BACKGROUND ELECTROLYTES; ZONE ELECTROPHORESIS; CHIRAL SEPARATIONS; EFFICIENCY; RESOLUTION;
Keywords:
QUATERNARY AMMONIUM COMPOUNDS; COMPUTER SIMULATION; BACKGROUND ELECTROLYTE COMPOSITION; PEAK SHAPE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
15
Recensione:
Indirizzi per estratti:
Citazione:
R.L. Williams et al., "PEAK SHAPE DISTORTIONS DURING CAPILLARY ELECTROPHORETIC SEPARATIONS OF MULTICOMPONENT SAMPLES IN 2 CO-ION BUFFERS", Journal of chromatography, 781(1-2), 1997, pp. 107-112

Abstract

During the capillary electrophoretic separation of a five-component quaternary ammonium analyte sample in two co-ion background electrolytes prepared from phosphoric acid, lithium hydroxide and tetrabutylammonium hydroxide, grossly distorted analyte peaks were observed. The electropherograms were successfully simulated using an earlier mathematical model of electrophoresis that was extended to handle up to eight nonproteic sample ions and two nonproteic background electrolyte co-ions. Peak shape distortion closely followed the predictions made during the recently described simulations of single analyte-two co-ion background electrolyte systems. Peak shape distortion was shown to depend on the relative mobilities of the particular analyte, the non-comigrating system peak and the governing co-ion. Severe peak shape distortion could occur in every multiple co-ion background electrolyte, such as in the indirect detection background electrolytes and charged interacting agent-containing background electrolytes, when certain analyte peaks and the non-comigrating system peaks overlap. (C) 1997 Elsevier ScienceB.V.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 11:05:50