用乙醇提取叶绿体色素，通常采用的方法是：取鲜叶１０ｇ，放入研钵中，加９５％乙醇２０ｍＬ，研磨至匀浆，经过滤后制取叶绿体色素提取液。在一般情况下，用以上方法不能充分将色素提取，往往液体中含杂质多（即使用水清洗过的叶片也如此），溶液混浊，绿色不浓，很难得到理? Extraction of chloroplast pigments with ethanol is usually carried out by taking 10 g of fresh leaves and placing them in a mortar and pestle, adding 95% ethanol (20 mL), grinding to homogenate, and filtering to obtain a chloroplast pigment extract. Under normal circumstances, the pigment cannot be fully extracted by the above method, and often the liquid contains a lot of impurities (even if the leaves have been washed with water), the solution is turbid, the green is not strong, and it is difficult to obtain a rationale.