提取与精制: 取其叶子或花略微捣碎后用重碳酸鈉沸溶液提取,提取物用10％HCl酸化(石蕊試紙试之)再經乙醚提取,蒸干乙醚,在热水中反复重结晶。取从艾菊中所得到的分泌物在沸水中重結晶,即得到黃色小簇晶。这种晶体能很好地溶介于乙醇,乙酸乙酯,及沸水中。不易溶于乙醚。在四氯化碳和氯仿中几乎不溶。 Extraction and purification: Take the leaves or flowers slightly smashed and extracted with sodium bicarbonate boiling solution. The extract is acidified with 10% HCl (tested with litmus paper) and extracted with ether. The ether is evaporated and repeatedly weighed in hot water. crystallization. The secretions obtained from tansy were recrystallized in boiling water to obtain small clusters of yellow crystals. This crystal dissolves well in ethanol, ethyl acetate, and boiling water. Not easily soluble in ether. It is almost insoluble in carbon tetrachloride and chloroform.