Methods: Flos Lonicerae from various areas of Henan province in its content of chlorogenic acid, ash, acid-insolubleash, arsenate and heavy metals was determined with HPLC.
Pharmacopeia method was used in water soluble extractives and limit test for heavy metals and total ash and acid-insolubleash 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。
3
The standards for the total ash content, acidinsolubleash content and water content in Fructus Amomi have been set up.