Ion trap detector — capillary gas chromatography of valproic acid and its mono-unsaturated metabolites in serum using methyl ester derivatives

Autor: Vitto M, Laureri Cf, Enrico Gaetani
Rok vydání: 1992
Předmět:
Zdroj: Journal of Pharmaceutical and Biomedical Analysis. 10:193-197
ISSN: 0731-7085
DOI: 10.1016/0731-7085(92)80028-l
Popis: A quantitative method was developed for valproic acid and five of its mono-unsaturated metabolites using capillary gas chromatography—mass spectrometry with selected ion monitoring. The method was applied to serum and all metabolites were measured in a single run. Methyl esters were synthesized as the derivatives suitable for gas chromatography. Calibration curves were found to be linear and the sensitivities in the order of 0.1 μg ml−1. Patients' data are presented. By this method it is possible to separate the stereoisomers of 2-n-propyl-2-pentenoic acid and of 2-n-propyl-3-pentenoic acid.
Databáze: OpenAIRE