title: A rapid reversed phase high-performance liquid chromatographic method for determination of sophoridine in rat plasma and its application to pharmacokinetics studies.
abstract: A high-performance liquid chromatography (HPLC) method for determining sophoridine in rat plasma was developed for application in the pharmacokinetic studies. The plasma was deproteinized with acetonitrile that contained an internal standard (ephedrine) and was separated from the aqueous layer by adding sodium chloride and sodium carbonate. The HPLC assay was carried out using a YMC-ODS column. The mobile phase was methanol-ethanol-0.01 moll(-1) ammonium acetate buffer-triethylamine (10:0.5:89.5:0.03, v/v/v/v) (pH 6.80). The flow rate was 0.8 ml min(-1). The detection wavelength was set at 210 nm. The method was used to determine the concentration-time profiles of sophoridine in the plasma following oral administration or injection of sophoridine aqueous solution. The fractions of sophoridine reaching the systemic circulation were estimated for the first time by a deconvolution method.
authors.affiliation: Department of Pharmacy, the First Hospital of Lanzhou University, Lanzhou 730000, People's Republic of China.
authors.forename: Yuhui
authors.initials: Y
authors.lastname: Wei
authors.forename: Xinan
authors.initials: X
authors.lastname: Wu
authors.forename: Xiaofeng
authors.initials: X
authors.lastname: Liu
authors.forename: Jianyun
authors.initials: J
authors.lastname: Luo
mesh_terms: D000470:Alkaloids / Q000097:blood* / Q000493:pharmacokinetics; D000818:Animals; D000871:Anthelmintics / Q000097:blood* / Q000493:pharmacokinetics; D002138:Calibration; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D008297:Male; D011807:Quinolizines / Q000097:blood* / Q000493:pharmacokinetics; D051381:Rats; D017208:Rats, Wistar; D012015:Reference Standards; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013056:Spectrophotometry, Ultraviolet; D000093842:Matrines
chemical_list: D000470:Alkaloids; D000871:Anthelmintics; D011807:Quinolizines; D000093842:Matrines