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A simple, sensitive and rapid liquid chromatography–tandem mass spectrometry (LC‐MS/MS) method was developed and validated for the determination of calceorioside B (CLB) in rat plasma. Detection was performed on a Thermo Scientific Hypersil Gold chromatography column using isocratic elution with a mobile phase of methanol–5 m m ammonium acetate–formic acid (70:30:0.1, v/v/v). Mass spectrometry was...
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