从网上查的和光纯药的标准品信息:Slightly yellow - yellowish brown, crystalline powder - powder
翻译过来,应该是:微黄,黄棕色,结晶粉末,粉末
附件有液体的标准品,看介绍是用甲醇溶解,不过感觉溶解度可能较低。
This product is for research use only. Do not administer it to human.
Atractylodin is an indicator ingredient contained in the rhizome of Atractylodes lancea. This product is standard atractylodin solution (5.0 mg/1000 mL methanol) for testing crude drugs. It can be used in the analysis of Atractylodes lancea. Preparation: Weigh accurately 5.0 mg of atractylodin for assay and add methanol to make exactly 1000 mL.
5.0 mg/1000 mL 也就相当于5mg/kg,也就是5ppm。