[Retracted] Electrochemical-Based Extraction, Separation, and Purification of Coumarin Compounds from Trifolium chinensis

Table 1

Laboratory equipment table.

Name	Specification	Origin
Chinese herbal medicine grinder	FW135	Tianjin
Rotary evaporator	RE-52AA	Shanghai
Circulating water type multipurpose vacuum pump	SHB-B	Zhengzhou
Ultrasonic cleaner	KQ3200	Kunshan
Instant thermostatic heating magnetic stirrer	DF-101S	Shanghai
Shelf balance	JPT-10C	Shanghai
Electronic balance	BP211D	Shimadzu
Low speed centrifuge	LDA-2	Beijing