Abstract
Penthorum chinense Pursh (PCP), as a traditional medicine of Miao nationality in China, is often used for the treatment of various liver diseases. At present, information regarding the in vivo process of PCP is lacking. Herein, a sensitive and robust ultra-performance liquid chromatography tandem with mass spectrometry (UPLC-MS/MS) was developed and validated for the quantification of several components to study their pharmacokinetics, tissues distribution and excretion in normal and acute alcoholic liver injury (ALI) rats. Prepared samples were separated on a Thermo C18 column (4.6 mm × 50 mm, 2.4 μm) using water containing 0.1 % formic acid (A) and acetonitrile (B) as the mobile phase for gradient elution. Negative electrospray ionization was performed using multiple reaction monitoring (MRM) mode for each component. The validated UPLC-MS/MS assay gave good linearity, accuracy, precision, recovery rate, matrix effect and stability. This method was successfully applied to the pharmacokinetics, tissue distribution and excretion in normal and acute ALI rats. There were differences in pharmacokinetic process, tissue distribution and excretion characteristics, indicating that ALI had a significant influence on the in vivo process of PCP in rats. The research provided an experimental basis for the study of PCP quality control and further application in the clinic.
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