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- W2067149897 abstract "In this study, a sensitive and selective method based on liquid chromatography combined with diode array and tandem mass spectrometry detection (LC–DAD–MS/MS) was developed for the simultaneous quantitative determination of fenofibric acid, pravastatin and its main metabolites in human plasma. In this method, an automated solid-phase extraction (SPE) on disposable extraction cartridges (DECs) is used to isolate the compounds from the biological matrix and to prepare a cleaner sample before injection and analysis in the LC–DAD–MS/MS system. On-line LC–DAD–MS/MS system using an atmospheric pressure ionization (TurboIonSpray) was then developed for the simultaneous determination of pravastatin, 3-hydroxy isomeric metabolite (3-OH metab), pravalactone and fenofibric acid. The separation is obtained on an endcapped dodecyl silica based stationary phase using a mobile phase consisting of a mixture of acetonitrile, methanol and 5 mM ammonium acetate solution (30:30:40, v/v/v). Sulindac and triamcinolone were used as internal standards (ISs). The detection of the fenofibric acid and sulindac was achieved by means of a DAD system. The MS/MS ion transitions monitored were m/z 442.2 → 269.1, 442.2 → 269.1, 424.3 → 183.0 and 435.2 → 397.2 for pravastatin, 3-OH metab, pravalactone and triamcinolone, respectively. The method was validated regarding stability, selectivity, extraction efficiency, response function, trueness, precision lower limit of quantitation and matrix effect. The limits of quantitation (LOQs) were around 0.50 ng/ml for pravastatin, 0.25 ng/ml for 3-OH metab, 0.05 ng/ml for pravalactone and 0.25 μg/ml for fenofibric acid." @default.
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- W2067149897 date "1976-08-01" @default.
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- W2067149897 title "Identification of a major metabolite of the new hypolipidaemic agent, isopropyl 2-[4′(p-chlorobenzoyl)phenoxy]-2-methylpropionate (procetofene) in humans by gas chromatography-mass spectrometry" @default.
- W2067149897 doi "https://doi.org/10.1016/s0021-9673(00)82222-0" @default.
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