OBJECTIVE: To scientifically control the limit of heavy metals in purified water.
前言：目的：科学地控制纯化水中重金属的限度。
Pharmacopeia method was used in water soluble extractives and limit test for heavy metals and total ash and acid-insoluble ash to test the quality in Lumbricus from different origin.
采用药典方法分别测定浸出物、总灰分和酸不溶性灰分和进行重金属检查，综合考察不同产地地龙的内在质量。
OBJECTIVE To investigate the limit contents for heavy metals and pesticide residues in vegetable drugs from the main pharmacopoeias being used in the world.
目的了解中、美、英、日和欧洲药典对植物药中重金属和农药残留量的有关规定，为中药材和中成药的质量控制提供参考。
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