The extracting ability of several organic solvents such as ethyl acetate, butyl acetate, glycerol triacetate, iso amy lacetate, and n butanol, was compared, and it was found that ethyl acetate was a good kind of organic solvent.

• 比较了几种不同的有机溶剂 :正丁醇、乙酸丁酯、乙酸乙酯、三乙酸甘油酯、乙酸异戊酯等的萃取能力 ；发现乙酸乙酯是一种理想的提取溶剂 .