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

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.

Büchele B, Zugmaier W, Genze F, Simmet T.

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Department of Pharmacology of Natural Products and Clinical Pharmacology, University of Ulm, Helmholtzstrasse 20, D-89081 Ulm, Germany.

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.

PMID:: 16266833; [PubMed - indexed for MEDLINE]

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