title: Analysis of 12 different pentacyclic triterpenic acids from frankincense in human plasma by high-performance liquid chromatography and photodiode array detection.
abstract: For the determination of pentacyclic triterpenes of the boswellic acid family in human plasma a novel sensitive method was developed combining serial extraction on diatomaceous earth and graphitized carbon black followed by reversed phase high-performance liquid chromatography (HPLC) and photodiode array detection. The overall average extraction yield of 12 different pentacyclic triterpenic acids was approximately 66%. The calibration graphs were linear with coefficients of correlation for all compounds greater than 0.999. The overall within-day and between-day coefficients of variation (CV) for the 12 pentacyclic triterpenic acids were 5.6 and 6.8%, respectively. This HPLC procedure delivers the analytical sensitivity, precision and accuracy required for clinical pharmacokinetic and therapeutic studies.
authors.affiliation: Department of Pharmacology of Natural Products and Clinical Pharmacology, University of Ulm, Helmholtzstrasse 20, D-89081 Ulm, Germany.
authors.forename: Berthold
authors.initials: B
authors.lastname: Büchele
authors.forename: Thomas
authors.initials: T
authors.lastname: Simmet
mesh_terms: D029743:Boswellia / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D006801:Humans; D015203:Reproducibility of Results; D013056:Spectrophotometry, Ultraviolet / Q000379:methods*; D014315:Triterpenes / Q000097:blood* / Q000493:pharmacokinetics
chemical_list: D014315:Triterpenes