Figure 5From: Ultra-performance liquid chromatography-quadrupole\time-of- flight mass spectrometry with multivariate statistical analysis for exploring potential chemical markers to distinguish between raw and processed Rheum palmatum OPLS-DA(S-plot) of Raw and Processed R. Palmatum Sample: A Raw DH vs. Wine DH; B Raw DH vs. Vinegar DH; C Raw DH vs. Prepared DH; D Raw DH vs. Charred DH. Back to article page