期刊
JOURNAL OF CHROMATOGRAPHY B
卷 759, 期 2, 页码 325-335出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0378-4347(01)00237-7
关键词
tramadol; o-desmethyltramadol
An HPLC system using solid-phase extraction and HPLC with UV detection has been validated in order to determine tramadol and o-desmethyltramadol (M1) concentrations in human plasma. The method developed was selective and linear for concentrations ranging from 50 to 3500 ng/ml (tramadol) and 50 to 500 ng/ml (M1) with mean recoveries of 94.36 +/- 12.53% and 93.52 +/-7.88%, respectively. Limit of quantitation (LOQ) was 50 ng/ml. For tramadol, the intra-day accuracy ranged from 95.48 to 114.64% and the inter-day accuracy, 97.21 to 103.24%. Good precision (0.51 and 18.32% for intra- and inter-day, respectively) was obtained at LOQ. The system has been applied to determine tramadol concentrations in human plasma samples for a pharmacokinetic study. (C) 2001 Elsevier Science B.V. All rights reserved.
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