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用酶活力为２．５ｍｇ／ｇ的多孔硅球固定化胰凝乳蛋白酶可拆分ＤＬ－苯丙氨酸甲酯得Ｌ－苯丙氨酸，拆分收率９２．３％，光学纯度９６．２％。
With the activity of 2.5mg / g porous silica gel immobilized chymotrypsin can be separated DL-phenylalanine methyl ester was L-phenylalanine, the resolution yield of 92.3%, an optical purity of 96 .2%.