Figure 3From: Simultaneous determination of three major bioactive saponins of Panax notoginseng using liquid chromatography-tandem mass spectrometry and a pharmacokinetic studyTandem mass spectra (daughter ion scans) of (a) internal standard (glipizide); (b) notoginsenoside R 1 parent ion; (c) ginsenoside Rg 1 ; and (d) ginsenoside Rb 1 .Back to article page