Fig. 3
From: Discriminating from species of Curcumae Radix (Yujin) by a UHPLC/Q-TOFMS-based metabolomics approach
S-plots of OPLS-DA constructed based on a comparison of C. phaeocaulis (CP, A), C. wenyujin (CW, B), C. kwangsiensis (CK, C) and C. longa (CL, D) with the remaining three species. (a) t R 4.11Â min, m/z 369.1331; (b) t R 4.24Â min, m/z 235.1696; (c) t R 4.31Â min, m/z 235.1697; (d) t R 4.35Â min, m/z 247.1333; (e) t R 4.48Â min, m/z 237.1851; (f) t R 4.58Â min, m/z 237.1853; and (g) t R 4.80Â min, m/z 231.1383