DETERMINATION OF 2-MERCAPTOPROPIONYLGLYCINE AND ITS METABOLITE, 2-MERCAPTOPROPIONIC ACID, IN PLASMA BY ION-PAIR REVERSED-PHASE HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY WITH POSTCOLUMN DERIVATIZATION

被引:17
作者
LEROY, P
NICOLAS, A
GAVRILOFF, C
MATT, M
NETTER, P
BANNWARTH, B
HERCELIN, B
MAZZA, M
机构
[1] FAC MED VANDOEUVRE NANCY,PHARMACOL CLIN LAB,CNRS,URA 1288,F-54500 VANDOEUVRE NANCY,FRANCE
[2] LABS CASSENNE,F-95521 CERGY,FRANCE
来源
JOURNAL OF CHROMATOGRAPHY-BIOMEDICAL APPLICATIONS | 1991年 / 564卷 / 01期
关键词
D O I
10.1016/0378-4347(91)80088-T
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A simple and fast high-performance liquid chromatographic method was developed for the simultaneous measurement of 2-mercaptopropionylglycine (Tiopronine(R)) and its metabolite (2-mercaptopropionic acid) in human plasma after the administration of a pharmaceutical dosage form (Acadione(R)). The sample treatment before high-performance liquid chromatographic analysis consisted of the reduction of the corresponding disulphides by tri-n-butylphosphine and protein precipitation with ethanol. Separation was achieved by ion-pair high-performance liquid chromatography on a reversed-phase column (LiChrospher RP 18e) with cetrimonium bromide as counter ion and detection by fluorimetry after post-column derivatization with a selective thiol reagent, i.e. pyrenemaleimide. The high frequency of the analyzed samples and validation results make the method suitable for pharmacokinetic studies, and this was demonstrated by the first results obtained after the administration of an oral dose of 500 mg of Tiopronine to two healthy subjects.
引用
收藏
页码:258 / 265
页数:8
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