title: Gas chromatographic determination of apomorphine in plasma.
abstract: A method is described for the analysis of 1 to 10 microgram/ml concentrations of apomorphine in plasma. The procedure is based on ethyl acetate extraction, a back extraction cleanup-step, derivatization with heptafluorobutyric anhydride, and gas chromatography on a 3% OV-17 column using flame ionization detection. N-n-Propylnorapomorphine is employed as an internal standard and quantitative relative recoveries of drug are realized with relative standard deviations of 4.6%. The method permits analysis of apomorphine in the presence of its two monomethyl ether metabolites, apocodeine and isoapocodeine. The latter compounds are also chromatographically resolved as their heptofluorobutyrate derivatives.
mesh_terms: D001058:Apomorphine / Q000031:analogs & derivatives / Q000032:analysis / Q000097:blood*; D055598:Chemical Phenomena; D002621:Chemistry; D002849:Chromatography, Gas / Q000379:methods; D006801:Humans; D009022:Morphine Derivatives / Q000032:analysis; D013057:Spectrum Analysis
chemical_list: D009022:Morphine Derivatives; D001058:Apomorphine