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Titolo:
Derivatization and chromatographic behavior of the o-phthaldialdehyde amino acid derivatives obtained with various SH-group-containing additives
Autore:
Molnar-Perl, I;
Indirizzi:
Lorand Eotvos Univ, Inst Inorgan & Analyt Chem, H-1518 Budapest 112, Hungary Lorand Eotvos Univ Budapest Hungary 112 em, H-1518 Budapest 112, Hungary
Titolo Testata:
JOURNAL OF CHROMATOGRAPHY A
fascicolo: 1-2, volume: 913, anno: 2001,
pagine: 283 - 302
Fonte:
ISI
Lingua:
ENG
Soggetto:
PERFORMANCE LIQUID-CHROMATOGRAPHY; ACETYL-L-CYSTEINE; AUTOMATED PRECOLUMN DERIVATIZATION; ORTHO-PHTHALALDEHYDE DERIVATIVES; ION-EXCHANGE CHROMATOGRAPHY; GAMMA-AMINOBUTYRIC-ACID; O-PHTHALDIALDEHYDE/3-MERCAPTOPROPIONIC ACID; 9-FLUORENYLMETHYL CHLOROFORMATE; FLUORESCENCE DERIVATIZATION; ELECTROCHEMICAL DETECTION;
Keywords:
reviews; derivatization; LC; amino acids; amino acids; OPA derivatives;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
66
Recensione:
Indirizzi per estratti:
Indirizzo: Molnar-Perl, I Lorand Eotvos Univ, Inst Inorgan & Analyt Chem, POB 32, H-1518 Budapest 112, Hungary Lorand Eotvos Univ POB 32 Budapest Hungary 112 12, Hungary
Citazione:
I. Molnar-Perl, "Derivatization and chromatographic behavior of the o-phthaldialdehyde amino acid derivatives obtained with various SH-group-containing additives", J CHROMAT A, 913(1-2), 2001, pp. 283-302

Abstract

An overview is presented of HPLC methods currently in use to determine amino acids as their o-phthaldialdyde derivatives in the presence of various SH-group-containing additives. Crucial points that proved to influence the stability of the amino acid OPA derivatives have been discussed in detail: (i) the mol ratios of the OPA-SH-group-containing additive amino acid; (ii) the preparation and storage conditions of the OPA reagents; (iii) the optimum pH conditions for the interactions and elutions; (iv) the behavior of the, believed to be, less stable amino acids, such as glycine, beta -alanine,gamma -aminobutyric acid, histidine, ornithine and lysine. (C) 2001 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 08/04/20 alle ore 08:34:37