Simultaneous analysis of tramadol, metoprolol and their metabolites in human plasma and urine by high performance liquid chromatography.
Li
Qin
Q
Marine Drug & Food Institute, Ocean University of China, Qingdao, China.
Wang
Rui
R
D000319:Adrenergic beta-Antagonists / Q000032:analysis*; D000701:Analgesics, Opioid / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D006801:Humans; D008790:Metoprolol / Q000032:analysis*; D014147:Tramadol / Q000032:analysis*
D000319:Adrenergic beta-Antagonists; D000701:Analgesics, Opioid; D014147:Tramadol; D008790:Metoprolol