title: Determination of metoprolol in plasma and urine using high-resolution gas chromatography and electron-capture detection.
mesh_terms: D001711:Biotransformation; D002849:Chromatography, Gas; D004563:Electrochemistry; D006801:Humans; D007202:Indicators and Reagents; D008790:Metoprolol / Q000031:analogs & derivatives / Q000032:analysis* / Q000097:blood / Q000652:urine
chemical_list: D007202:Indicators and Reagents; C029504:alpha-hydroxymetoprolol; D008790:Metoprolol