High-performance liquid chromatographic determination of acetyl-11-keto-alpha-boswellic acid, a novel pentacyclic triterpenoid, in plasma using a fluorinated stationary phase and photodiode array detection: application in pharmacokinetic studies

J Chromatogr B Analyt Technol Biomed Life Sci. 2005 Dec 27;829(1-2):144-8. doi: 10.1016/j.jchromb.2005.09.043. Epub 2005 Nov 2.

Abstract

A rapid, sensitive and selective HPLC separation with photodiode array detection was developed for the analysis of the novel pentacyclic triterpenoid acetyl-11-keto-alpha-boswellic acid. Complete baseline separation of acetyl-11-keto-alpha-boswellic acid from the corresponding isomer acetyl-11-keto-beta-boswellic acid was achieved on a fluorinated stationary phase. The standard curve was linear from 0.98 nmol/l to 196 nmol/l acetyl-11-keto-alpha-boswellic acid. The compound was isolated from chick embryonic plasma using extraction on diatomaceous earth with an overall average extraction yield of 82%. This method was applied in a kinetic study on the chick chorioallantoic membrane model (CAM) and showed unequivocal separation between acetyl-11-keto-alpha-boswellic acid and acetyl-11-keto-beta-boswellic acid unachievable so far.

Publication types

  • Research Support, Non-U.S. Gov't
  • Validation Study

MeSH terms

  • Animals
  • Chick Embryo
  • Chromatography, High Pressure Liquid / methods*
  • Fluorine / chemistry*
  • Sensitivity and Specificity
  • Triterpenes / blood*
  • Triterpenes / pharmacokinetics

Substances

  • Triterpenes
  • acetyl-11-ketoboswellic acid
  • Fluorine