Stability of Alkaloids during Drying Process and Their Effect on Anticoagulating Activity of Uncariae Ramulus Cum Uncis

Figure 4

The variation of the content of each characteristic component with time. (a) Rhynchophylline, (b) isorhynchophylline, (c) corynoxeine, and (d) the sum of peak areas.

(a)

(b)

(c)

(d)