LC-MS determination and pharmacokinetic study of six phenolic components in rat plasma after taking traditional Chinese medicinal-preparation: Guanxinning lyophilized powder for injection

Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Xiaorui GuoKaishun Bi

Abstract

A traditional Chinese medicinal preparation (TCMP) named Guanxinning lyophilized powder for injection composed of Salvia miltiorrhiza Bge. (SMB) and Ligusticum chuanxiong Hort. (LCH) was studied. In order to learn the kinetic behaviors of the lyophilized powder and provide proofs for rational administration, we have developed a sensitive and reproducible method for determination and pharmacokinetic study of six main phenolic components {danshensu (DSS), protocatechuic acid (PAC), protocatechuic aldehyde (PAL), chlorogenic acid (CHA), caffeic acid (CAA) and salvianolic acid B (SAB)} of Guanxinning in rat plasma using liquid chromatography-mass spectrometric (LC-MS) method. Sample preparations were carried out by protein precipitation with the addition of methanol followed by liquid-liquid extraction with ethyl acetate-ethyl ether (3:1, v/v) after internal standard (IS, galic acid) spiked. After evaporation to dryness, the resultant residue was reconstituted in methanol and injected onto a Kromasil C(18) column (150 mm x 4.6 mm i.d. with 5 microm particle size). The analytes were analyzed by using negative electrospray ionization (ESI) mass spectrometry in selected ion monitoring (SIM) mode. The method was with good linearity in ...Continue Reading

Citations

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