Fig. 4From: Characterization of ginsenosides from Panax japonicus var. major (Zhu-Zi-Shen) based on ultra-high performance liquid chromatography/quadrupole time-of-flight mass spectrometry and desorption electrospray ionization-mass spectrometry imagingStructural elucidation of different subclasses of ginsenosides in PJM based on the negative CID-MS2 dataBack to article page