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Titolo:
Gas chromatographic quantification of amino acid enantiomers in food matrices by their N(O,S)-ethoxycarbonyl heptafluorobutyl ester derivatives
Autore:
Casal, S; Oliveira, MB; Ferreira, MA;
Indirizzi:
Univ Porto, CEQUP Serv Bromatol, Fac Farm, P-4050 Porto, Portugal Univ Porto Porto Portugal P-4050 matol, Fac Farm, P-4050 Porto, Portugal
Titolo Testata:
JOURNAL OF CHROMATOGRAPHY A
fascicolo: 2, volume: 866, anno: 2000,
pagine: 221 - 230
Fonte:
ISI
Lingua:
ENG
Soggetto:
PERFORMANCE LIQUID-CHROMATOGRAPHY; MONITORING MASS-SPECTROMETRY; PRECOLUMN DERIVATIZATION; (+)-1-(9-FLUORENYL)ETHYL CHLOROFORMATE; O-PHTHALDIALDEHYDE; STATIONARY PHASES; D,L-AMINO ACIDS; L-CYSTEINE; SEPARATION; RAT;
Keywords:
enantiomer separation; derivatisation, GC; amino acids; N(O,S)-ethoxycarbonyl heptafluorobutyl ester;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
38
Recensione:
Indirizzi per estratti:
Indirizzo: Oliveira, MB Univ Porto, CEQUP Serv Bromatol, Fac Farm, Rua Anibal Cunha 164, P-4050 Porto, Portugal Univ Porto Rua Anibal Cunha 164 Porto Portugal P-4050 rtugal
Citazione:
S. Casal et al., "Gas chromatographic quantification of amino acid enantiomers in food matrices by their N(O,S)-ethoxycarbonyl heptafluorobutyl ester derivatives", J CHROMAT A, 866(2), 2000, pp. 221-230

Abstract

Several amino acid enantiomer derivatives were prepared with different chloroformates and analysed by gas chromatography (GC) on a Chirasil-L-Val GC column, at a temperature below 200 degrees C. Among them the N(O,S)-ethoxycarbonyl heptafluorobutyl esters presented the best compromise between shortretention times, high yield responses and good resolution for almost all the tested amino acids. These derivatives proved to be suited for quantification of amino acids in aqueous media, with L-p-chlorophenylalanine as internal standard. The developed procedure was applied to several food samples for determination of their free amino acid profiles. (C) 2000 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/04/20 alle ore 17:34:42