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J Chromatogr B Biomed Appl. 1996 Jan 12;675(1):157-61.

Determination of tryptophan and its kynurenine pathway metabolites in human serum by high-performance liquid chromatography with simultaneous ultraviolet and fluorimetric detection.

Author information

1
Service de Biochimie, Hôpital Beaujon 100, Clichy, France.

Abstract

An isocratic reversed-phase high-performance liquid chromatographic method for the simultaneous determination of tryptophan and four metabolites of the kynurenine pathway (kynurenine, 3-hydroxykynurenine, kynurenic acid and 3-hydroxyanthranilic acid) in human serum is described. This new method, which uses both isocratic elution and two on-line connected programmable ultraviolet and spectrofluorimetric detectors, allows the determination of these metabolites, in the physiological ranges, with satisfying specificity and sensitivity within 30 min.

PMID:
8634758
DOI:
10.1016/0378-4347(95)00341-x
[Indexed for MEDLINE]

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