The Rapid Discrimination and Quality Assessment of Three Zanthoxylum Species Using ¹H NMR Spectrometry

Table 2

The content of xanthoxylin for 16 elutions in three Zanthoxylum species: Z. piperitum, Z. schinifolium, and Z. bungeanum.

No.	Z. piperitum	Z. schinifolium	Z. bungeanum
	(mg/ml)
1	0.03	0.14	0.05
2	0.03	0.13	0.08
3	0.03	0.10	0.58
4	0.06	0.12	0.37
5	0.04	0.03	1.13
6	0.02	0.09	1.46
7	0.02		1.13
8	0.04		0.40
9	0.06		1.43
10	0.08		0.47
11	0.06		0.35
12	0.07		0.11
13	0.03		0.06
14	0.02
15	0.05
16	0.05
Mean	0.04	0.10	0.59
SD	0.02	0.04	0.52