title: Rapid simultaneous quantification of five active constituents in rat plasma by high-performance liquid chromatography/tandem mass spectrometry after oral administration of Da-Cheng-Qi decoction.
abstract: A rapid, sensitive and specific liquid chromatography-electrospray ionization/tandem mass spectrometry (LC-ESI/MS/MS) method has been developed and validated for simultaneous determination of five active constituents (including magnolol, honokiol, rhein, emodin and aloe-emodin) from Da-Cheng-Qi decoction (DCQD) in rat plasma. After the addition of gliquidone as the internal standard (IS), plasma samples were prepared by one-step protein precipitation using methanol and separated by HPLC on a short reversed phase C(18) column packed with smaller particles (100 mm x 3.0 mm, 3.5 microm) using a mobile phase of methanol-0.1% formic acid aqueous solution (70:30, v/v). Analytes were determined in a triple-quadrupole mass spectrometer in the selected reaction-monitoring (SRM) mode using electrospray source with negative mode. The method was proved to be rapid, sensitive, specific, accurate and reproducible and has been successfully applied to the determination of the five compounds in rat plasma after oral administration of low dose DCQD for pharmacokinetic study.
authors: Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Nanjing 210009, China.
authors: Fengguo
authors: F
authors: Xu
authors: Ying
authors: Y
authors: Liu
authors: Zunjian
authors: Z
authors: Zhang
authors: Rui
authors: R
authors: Song
authors: Haijuan
authors: H
authors: Dong
authors: Yuan
authors: Y
authors: Tian
mesh_terms: D000284:Administration, Oral; D000818:Animals; D000880:Anthraquinones / Q000097:blood*; D001713:Biphenyl Compounds / Q000097:blood*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D004365:Drugs, Chinese Herbal / Q000032:analysis*; D004642:Emodin / Q000097:blood*; D005260:Female; D017705:Lignans / Q000097:blood*; D008297:Male; D010936:Plant Extracts; D051381:Rats; D017207:Rats, Sprague-Dawley; D053719:Tandem Mass Spectrometry / Q000379:methods*; D000498:Allyl Compounds; D010636:Phenols
chemical_list: D000880:Anthraquinones; D001713:Biphenyl Compounds; D004365:Drugs, Chinese Herbal; D004642:Emodin; D017705:Lignans; D010936:Plant Extracts; C477169:dachengqi decoction; C005498:magnolol; C005499:honokiol; D000498:Allyl Compounds; D010636:Phenols; C518327:aloe emodin; C020491:rhein