指纯度能够被用于人类药物的化学品，每种化学品的药用级都不同。药用级的纯度一般高于食品级、医用级。
最后进行分子蒸馏，得到药用级的高纯度的甘油。
Finally, the molecular distillation is performed to obtain medical-grade high-purity glycerin.
报道哀牢山国家级自然保护区药用蕨类植物资源。
This paper deals with the fern medicine resources of Ailaoshan Mountain national nature reserve.
报道药用爬行类共18种，其中有国家二级重点保护野生动物4种，国家保护的有益的或者有重要经济、 科学研究价值的陆生动物11种。
Among them, 4 species were the second class state key protected wildlife in China, 11 species were useful or important to economy and scientific research category.
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