title: Simultaneous determination of trans-resveratrol-3-O-glucoside and its two metabolites in rat plasma using liquid chromatography with ultraviolet detection.
abstract: A sensitive and selective high-performance liquid chromatographic method was developed for simultaneous determination of trans-resveratrol-3-O-glucoside (TRG) and its metabolites, trans-resveratrol-3-O-glucuronide (TRN) and trans-resveratrol (TR) in rat plasma. The plasma proteins were precipitated with acetonitrile and supernatant was evaporated to dryness. The analytes and internal standard baicalin were chromatographed on a C(18) column. The mobile phase consisted of 25% acetonitrile and 75% H(2)O adjusted with formic acid to pH 3.5. The flow-rate was 1.0 ml/min and ultraviolet detection was set at 320 nm. Standard curves were linear over the concentration range of 0.04-40 microg/ml for TRG and TRN, and 0.04-10 microg/ml for TR, respectively. The precision, expressed as the intra-day R.S.D. and inter-day R.S.D., was below 9.3% for TRG, TRN and TR. The accuracy, expressed as the relative error (RE) was within +/-7.4% for all analytes. The mean recoveries of TRG, TRN, TR and I.S. were 93.6%, 93.1%, 91.0% and 87.9%, respectively. This method was successfully applied to a pharmacokinetic study of TRG after an oral dose of 150 mg/kg to Wistar rats.
authors.affiliation: Laboratory of Drug Metabolism and Pharmacokinetics, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China.
authors.forename: Maojin
authors.initials: M
authors.lastname: Zhou
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Chen
authors.forename: Dafang
authors.initials: D
authors.lastname: Zhong
mesh_terms: D000818:Animals; D002853:Chromatography, Liquid / Q000379:methods*; D005960:Glucosides / Q000737:chemistry; D051381:Rats; D017208:Rats, Wistar; D015203:Reproducibility of Results; D000077185:Resveratrol; D012680:Sensitivity and Specificity; D013056:Spectrophotometry, Ultraviolet / Q000379:methods*; D013267:Stilbenes / Q000097:blood* / Q000737:chemistry / Q000493:pharmacokinetics
chemical_list: D005960:Glucosides; D013267:Stilbenes; D000077185:Resveratrol