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Titolo:
SYSTEM PEAKS IN SINGLE-COLUMN ION CHROMATOGRAPHY (SCIC) WITH INDIRECTSPECTROPHOTOMETRIC DETECTION
Autore:
ZUO XJ; CHEN LR; WANG Q;
Indirizzi:
CHINESE ACAD SCI,LANZHOU INST CHEM PHYS LANZHOU 730000 PEOPLES R CHINA
Titolo Testata:
Chromatographia
fascicolo: 11-12, volume: 39, anno: 1994,
pagine: 713 - 718
SICI:
0009-5893(1994)39:11-12<713:SPISIC>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
ELUENTS; ANIONS;
Keywords:
COLUMN LIQUID CHROMATOGRAPHY; ION CHROMATOGRAPHY; SYSTEM PEAKS; INDIRECT DETECTION; ANIONS AND CATIONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
11
Recensione:
Indirizzi per estratti:
Citazione:
X.J. Zuo et al., "SYSTEM PEAKS IN SINGLE-COLUMN ION CHROMATOGRAPHY (SCIC) WITH INDIRECTSPECTROPHOTOMETRIC DETECTION", Chromatographia, 39(11-12), 1994, pp. 713-718

Abstract

The most popular eluents for SCIC are organic acids and their salts with one or more kinds of ion taking part in the elution process. Theseions compete for ion-exchange equilibria. After an injection, the equilibria are disturbed and a re-equilibration process occurs resulting in extraneous peaks (system peak). A mechanism based on these aspects is proposed which is used successfully in the interpretation of the effects of sample properties and eluent parameters on system peaks. Experiments in the analysis of both cations and anions have been carried out to support this mechanism with eluents comprising two kinds of eluent ions. An equation for capacity factors in such systems is also derived.

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Documento generato il 11/07/20 alle ore 04:14:59