title: Simultaneous determination of danshensu, ferulic acid, cryptotanshinone and tanshinone IIA in rabbit plasma by HPLC and their pharmacokinetic application in danxiongfang.
abstract: A selective and sensitive reversed-phase high performance liquid chromatography method was developed and validated for the simultaneous determination of danshensu, ferulic acid, cryptotanshinone, and tanshinone IIA in rabbit plasma using p-hydroxybenzoic acid as internal standard. Liquid-liquid extraction was used for sample preparation. Chromatographic separation was successfully achieved on an Agilent HC-C(18) column using a mobile phase composed of methanol-water (from 20:80 to 80:20, v/v) containing 0.5% (v/v) glacial acetic acid. The mobile phase was employing gradient elution at a flow rate of 1.0 ml/min. The method showed good linearity and no endogenous material interfered with the marked compounds and I.S. peaks. The limit of quantification of danshensu, ferulic acid, cryptotanshinone, and tanshinone IIA were 0.1, 0.03, 0.05, and 0.05 microg/ml, respectively. The average extract recoveries of the four compounds from rabbit plasma were all over 60%. The precisions determined from 5 days were all within 10%. The established method has been successfully applied in the pharmacokinetic study and drug interaction of danshensu, ferulic acid, cryptotanshinone, and tanshinone IIA in rabbits after intravenous administration of danxiongfang, a useful compound preparation of traditional Chinese medicine.
authors.affiliation: Department of Pharmacology, School of Chemical Biology and Pharmaceutical Sciences, Capital Medical University, Beijing 100069, PR China.
authors.forename: Xiaoli
authors.initials: X
authors.lastname: Li
authors.forename: Xiaorong
authors.initials: X
authors.lastname: Li
authors.forename: Lijuan
authors.initials: L
authors.lastname: Wang
authors.forename: Yuhang
authors.initials: Y
authors.lastname: Li
authors.forename: Yanxia
authors.initials: Y
authors.lastname: Xu
authors.forename: Ming
authors.initials: M
authors.lastname: Xue
mesh_terms: D045784:Abietanes; D000818:Animals; D002851:Chromatography, High Pressure Liquid / Q000295:instrumentation / Q000379:methods*; D003373:Coumaric Acids / Q000097:blood* / Q000737:chemistry; D004347:Drug Interactions; D004365:Drugs, Chinese Herbal / Q000493:pharmacokinetics*; D007773:Lactates / Q000097:blood* / Q000737:chemistry; D008297:Male; D008516:Medicine, Chinese Traditional; D015394:Molecular Structure; D010616:Phenanthrenes / Q000097:blood* / Q000737:chemistry; D011817:Rabbits; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013056:Spectrophotometry, Ultraviolet
chemical_list: D045784:Abietanes; D003373:Coumaric Acids; D004365:Drugs, Chinese Herbal; D007773:Lactates; D010616:Phenanthrenes; C021751:tanshinone; C035055:3,4-dihydroxyphenyllactic acid; C037886:cryptotanshinone; C004999:ferulic acid