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Simultaneous determination of four secoiridoid and iridoid glycosides in rat plasma by ultra performance liquid chromatography–tandem mass spectrometry and its application to a comparative pharmacokinetic study
Author(s) -
Wu Yun,
Ai Yu,
Wang Fenrong,
Ma Wen,
Bian Qiaoxia,
Lee David Y.W.,
Dai Ronghua
Publication year - 2016
Publication title -
biomedical chromatography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 65
eISSN - 1099-0801
pISSN - 0269-3879
DOI - 10.1002/bmc.3519
Subject(s) - chemistry , chromatography , formic acid , analyte , selected reaction monitoring , electrospray ionization , tandem mass spectrometry , mass spectrometry , high performance liquid chromatography , glycoside , liquid chromatography–mass spectrometry , pharmacokinetics , triple quadrupole mass spectrometer , organic chemistry , medicine
A simple, reliable and rapid ultra‐performance liquid chromatography–tandem mass spectrometry method was developed and validated for the simultaneous quantification of four secoiridoid (gentiopicroside, swertiamarin, sweroside) and iridoid glycosides (loganic acid), the bio‐active ingredients in rat plasma. After liquid–liquid extraction, chromatographic separation was accomplished on a Shim‐pack XR‐ODS column with a mobile phase consisting of methanol and 0.1% formic acid in water. A triple quadrupole tandem mass spectrometry equipped with an electrospray ionization source was used as detector operating both in positive and negative ionization mode and operated by multiple‐reaction monitoring scanning. The lower limits of quantitation were 0.25–30 ng/mL for all the analytes. Both intra‐day and inter‐day precision and accuracy of analytes were well within acceptance criteria (±15%). The mean extraction recoveries of analytes and internal standard (amygdalin) from rat plasma were all >71.4%. The validated method was successfully applied to a comparative pharmacokinetic study of four analytes in rat plasma between normal and arthritic rats after oral administration of Huo Luo Xiao Ling Dan and Gentiana macrophylla extract, respectively. Results showed significant differences in pharmacokinetic properties of the analytes among the different groups. Copyright © 2015 John Wiley & Sons, Ltd.