Simultaneous Determination of Three Coumarins in Angelica dahurica by ¹H-qNMR Method: A Fast and Validated Method for Crude Drug Quality Control

Table 5

Content (%) of three coumarins in A. dahurica by using the ¹H-qNMR (unit: %).

Sample	Job operation	Component
		Imperatorin	Byakangelicin	Oxypeucedanin
Suining Sichuan	—	0.239	0.133	0.191
Suining Sichuan	Stove drying	0.132	0.175	0.219
Xinqiao Sichuan	—	0.195	0.120	0.192
Daying Sichuan	—	0.221	0.117	0.173
Xinsheng Sichuan	—	0.207	0.125	0.186
Anhui	—	0.208	0.257	0.234
Bozhou Anhui	Stove drying	0.191	0.287	0.353
Xiaoying Hebei	Sun drying	0.363	0.236	0.337
Yangjiaying Hebei	Sun drying	0.392	0.315	0.335
Mengzhou Henan	Stove drying	0.093	0.219	0.190
Heze Shandong	Stove drying	0.132	0.187	0.217

“—” denotes unknown.