Single Standard Substance for the Simultaneous Determination of Eleven Components in the Extract of Paeoniae Radix Alba (Root of Paeonia lactiflora Pall.)

Figure 2

The UV spectra of the eleven components. (a) Gallic acid. (b) Oxypaeoniflorin. (c) Catechin. (d) Albiflorin. (e) Paeoniflorin. (f) Ethyl gallate. (g) Galloylpaeoniflorin. (h) Pentagalloylglucose. (i) Benzoic acid. (j) Benzoylpaeoniflorin. (k) Paeonol.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)

(k)