title: Simultaneous determination of puerarin, daidzin, daidzein, paeoniflorin, albiflorin, liquiritin and liquiritigenin in rat plasma and its application to a pharmacokinetic study of Ge-Gen Decoction by a liquid chromatography-electrospray ionization-tandem mass spectrometry.
abstract: A liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) method was developed and validated for simultaneous determination of seven constituents including puerarin, daidzin, daidzein, paeoniflorin, albiflorin, liquiritin and liquiritigenin in rat plasma using schisandrin as the internal standard (IS). The plasma samples were pretreated by a one-step direct protein precipitation with acetonitrile. The chromatographic separation was carried out on a C18 column with a gradient mobile phase consisting of acetonitrile and water (containing 0.1% formic acid and 5mM ammonium acetate). All analytes and IS were quantitated through electrospray ionization in positive ion multiple reaction monitoring (MRM) mode. The mass transitions were as follows: m/z 417.5→297.2 for puerarin, m/z 417.1→255.2 for daidzin, m/z 255.2→152.4 for daidzein, m/z 498.1→179.3 for paeoniflorin, m/z 481.1→197.3 for albiflorin, m/z 436.2→257.3 for liquiritin, m/z 257.2→137.3 for liquiritigenin and m/z 415.0→384.2 for IS, respectively. All calibration curves exhibited good linearity (r>0.9979) over a wide concentration range for all components. The intra-day and inter-day precisions (RSD) at three different levels were both less than 14.3% and the accuracies (RE) ranged from -13.2% to 14.8%. The extraction recoveries of the seven compounds ranged from 72.9% to 117.4%. The validated method was successfully applied to pharmacokinetic study of the seven components in female rat plasma after oral administration of Ge-Gen Decoction aqueous extract.
authors.affiliation: Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing 211198, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Yan
authors.affiliation: Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing 211198, China.
authors.forename: Cheng-Zhi
authors.initials: CZ
authors.lastname: Chai
authors.affiliation: Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China.
authors.forename: Da-Wei
authors.initials: DW
authors.lastname: Wang
authors.affiliation: Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing 210028, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Wu
authors.affiliation: State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China.
authors.forename: Hong-He
authors.initials: HH
authors.lastname: Xiao
authors.affiliation: Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing 211198, China.
authors.forename: Li-Xia
authors.initials: LX
authors.lastname: Huo
authors.affiliation: Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing 211198, China.
authors.forename: Dan-Ni
authors.initials: DN
authors.lastname: Zhu
authors.affiliation: Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing 211198, China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China. Electronic address: boyangyu59@163.com.
authors.forename: Bo-Yang
authors.initials: BY
authors.lastname: Yu
mesh_terms: D000818:Animals; D001952:Bridged-Ring Compounds / Q000097:blood; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D004365:Drugs, Chinese Herbal / Q000032:analysis*; D044950:Flavanones / Q000097:blood; D005960:Glucosides / Q000097:blood; D007529:Isoflavones / Q000097:blood; D039821:Monoterpenes / Q000097:blood; D051381:Rats; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*; D053719:Tandem Mass Spectrometry / Q000379:methods*; D006027:Glycosides
chemical_list: D001952:Bridged-Ring Compounds; D004365:Drugs, Chinese Herbal; D044950:Flavanones; D005960:Glucosides; D007529:Isoflavones; D039821:Monoterpenes; C516400:shuang-huang-lian; C015423:peoniflorin; D006027:Glycosides; C014959:albiflorin; C013908:daidzin; C004742:daidzein; C512196:liquiritin; C083152:liquiritigenin; C033607:puerarin
keywords: Ge-Gen Decoction; Isoflavones; LC–ESI-MS/MS; Monoterpene glucosides; Pharmacokinetics