| Literature DB >> 6761349 |
M Guerret, C Julien-Larose, J R Kiechel, D Lavène.
Abstract
An electron-capture gas-liquid chromatographic method was developed for measuring 3-hydroxy-guanfacine, the main metabolite of guanfacine in human plasma and urine. After extraction, the metabolite was derivatized by condensing the amidino group with hexafluoroacetylacetone and by methylating the NH and OH groups with methyl iodide. The obtained derivative possessed good bioanalytical gas chromatographic properties, using a capillary column. The O-glucuronide was measured after enzymatic hydrolysis. Unchanged guanfacine could be determined in urine together with its 3-hydroxy metabolite by this method.Entities:
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Year: 1982 PMID： 6761349 DOI： 10.1016/s0378-4347(00)81745-4
Source DB: PubMed Journal: J Chromatogr