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Titolo:
INFLUENCE OF DISSOLVED-GASES IN THE DYNAMIC HEADSPACE ANALYSIS OF STYRENE AND OTHER VOLATILE ORGANIC-COMPOUNDS AND IMPROVEMENT OF THEIR DETERMINATION
Autore:
LESECH J; DUCRUET V; FEIGENBAUM A;
Indirizzi:
INRA,LNSA F-78352 JOUY EN JOSAS FRANCE INRA,LNSA F-78352 JOUY EN JOSAS FRANCE
Titolo Testata:
Journal of chromatography
fascicolo: 1-2, volume: 667, anno: 1994,
pagine: 340 - 347
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHROMATOGRAPHY; WATER; METHOD-524.2; MIGRATION;
Tipo documento:
Note
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
19
Recensione:
Indirizzi per estratti:
Citazione:
J. Lesech et al., "INFLUENCE OF DISSOLVED-GASES IN THE DYNAMIC HEADSPACE ANALYSIS OF STYRENE AND OTHER VOLATILE ORGANIC-COMPOUNDS AND IMPROVEMENT OF THEIR DETERMINATION", Journal of chromatography, 667(1-2), 1994, pp. 340-347

Abstract

The on-line purge and trap dynamic headspace technique (PTI) was optimized for styrene. High-boiling volatiles such as styrene were efficiently desorbed from oil and from oil-water matrices. The effects governing the desorption were identified by comparison with an off-line procedure. The recovery of styrene depends dramatically on the amount of fat and on the desorption temperature. For oil-water systems, the aqueous phase had to be saturated with both sodium chloride and carbon dioxide; with PTI, no desorption occurs if the sample is initially degassed; regassing improved desorption, carbon dioxide giving the best results.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 08/07/20 alle ore 07:55:26