PubMed · 10081737
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S B Levine. Caution recommended.. https://doi.org/10.1080/00926239908403971
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A rapid and sensitive liquid chromatography-electrospray ionisation mass spectrometry (HPLC-ESI-MS) assay has been developed for the measurement of moclobemide and metabolites, Ro12-5637 and Ro12-8095, in human plasma. Sample preparation (0.5 ml plasma) involves solid-phase extraction using C18 cartridges. A Nova-Pak phenyl column (Waters, 4 microm, 150x2 mm I.D.) was employed for analyte separation with a mixture of 0.2 M ammonium formate buffer, pH 3.57 and acetonitrile as the mobile phase. The within- and between-day precisions of the assay were <18% and the limit of quantification for all analytes was 0.01 microg/ml. The total run-time was 6 min. The method described was used to measure moclobemide, Ro12-5637 and Ro12-8095 in human plasma following an oral 300 mg dose.