Using UPLC-QTOF-MS Method to Analyse the Spot Constituents of the Thin Layer Chromatograms for Chuzhou Stemona sessilifolia (Miq.) Miq.

Figure 3

Total ion chromatograms of blank, spot 1, spot 2, spot 3, and spot 4 by UPLC-QTOF-MS in positive mode.

(a) Bank

(b) Spot 1

(c) Spot 2

(d) Spot 3

(e) Spot 4