Shandong Science ›› 2022, Vol. 35 ›› Issue (4): 21-27.doi: 10.3976/j.issn.1002-4026.2022.04.004

• Pharmacology and Toxicology • Previous Articles     Next Articles

Determining the concentration of tectochrysin in rat plasma using HPLC-MS/MS

DENG Zhi-Peng(), LI Jing, ZHAO Pan, SONG Jia   

  1. College of Pharmacy, Shandong University of Chinese Medicine, Jinan 250355, China
  • Received:2022-07-27 Published:2022-08-20 Online:2022-07-25

Abstract:

The aim was to develop a method using high-performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS) for the quantitative analysis of tectochrysin in rat plasma and evaluate the pharmacokinetics of tectochrysin in rats after intragastric administration. First, plasma samples were precipitated using acetonitrile reagent, and a 5 μL supernatant was injected into system for analysis. Phellopterin was used as the internal standard to monitor the concentrations of tectochrysin in rat plasma via HPLC-MS/MS. Zorbax Eclipse Plus C18 column (2.1 mm × 50 mm, 1.8 μm) was used, and the mobile phase was composed of an aqueous solution (60:40, V/V) of 0.1% acetonitrile and formic acid (isocratic elution). Electrospray ionization was used in the positive ion mode, and selected reaction monitoring was performed at mass-to-charge ratio (m/z) 268.8→225.9 (tectochrysin) and m/z 300.9→233.0 (internal standard). The calibration curve was linear in the range of 0.5~200 ng/mL. The relative standard deviation of inter and intraday precisions was 3.28%~13.12%, and relative error of accuracy was -6.38%~7.60%. Matrix effect was 98.43%~103.57%, and extraction recovery rate was 93.36%~96.31%. The assay was found to be useful for determining the concentration and evaluating the pharmacokinetics of tectochrysin in rat plasma.

Key words: tectochrysin, HPLC-MS/MS, rat plasma, matrix effect, pharmacokinetics

CLC Number: 

  • R285

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