Artemisia annua is distributed in China, North Korea, Japan, Vietnam (North), Myanmar, India (North) and Nepal. In China, it is distributed in Jilin, Liaoning, Hebei (south), Shaanxi (south), Shandong, Jiangsu, Anhui, Zhejiang, Jiangxi, Fujian, Henan, Hubei, Hunan, Guangdong, Guangxi, Sichuan (east), Guizhou, Yunnan and other provinces.
Extended data:
Identification: Take 3g of this product powder, add 50 ml of petroleum ether (60 ~ 90℃), heat and reflux for 65,438 0 hours, filter, evaporate the filtrate, dissolve the residue with 30ml of n-hexane, extract with 20% acetonitrile solution for 3 times, 65438±00ml each time, combine the acetonitrile solutions, evaporate to dryness, and add 0.5% ethanol to the residue. 5ml dissolved, as the test solution. Another artemisinin reference substance was added with ethanol to prepare a solution containing 1 mg per 1 ml as the reference substance solution.
According to the thin-layer chromatography test (Appendix ⅵ b), absorb 5μl of the above two solutions, respectively spot them on the same silica gel G thin-layer plate, use petroleum ether (60 ~ 90℃)- diethyl ether (3:2) as the developing agent, unfold, take out, dry, spray with 10% sulfuric acid ethanol solution, and heat to1. In the chromatogram of the test sample, fluorescent spots with the same color appear in the position corresponding to the chromatogram of the control sample.
Baidu encyclopedia-Artemisia annua