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1·RESULTS: The two novel D ring synthons are of high optical purity.

结果：所合成的两个手性d环合成子光学纯度高。

2·Optical grade with UV cut-off up to 400 nm, greater optical purity than standard grades.

光学级紫外截止到400纳米，大于标准等级的光学纯度。

3·A new capillary electrophoresis method was established for the optical purity analysis of levodopa.

建立了一种毛细管电泳测定左旋多巴药片光学纯度的新方法。

4·Furthermore, the degree of optical purity of pesticides is osculating with the degree of chiral intermediate.

手性药物的光学纯度高低直接和生产该药物的手性中间体的光学纯度密切相关。

5·The method has the advantages of high yield, high optical purity, high separation efficiency, easy and convenient operation, and the like.

本发明方法具有收率高、光学纯度高、拆分效率高、操作简单易行等优点。

6·Purpose To establish a high performance capillary electrophoresis (HPCE) method for determining the optical purity of meptazinol dip-toluoyl tartaric acid.

目的建立测定二对甲苯甲酰酒石酸美普他酚对映体的毛细管区带电泳法，并检测其光学纯度。

7·The n, N-dimethyl acetamide is used as the reaction solvent, therefore, the reaction time is shortened, and simultaneously, the obtained Gallant-Super has high yield rate and good optical purity.

选用N, N -二甲基乙酰胺作为反应溶剂后缩短反应时间的同时，得到的盖草能收率高，光学纯度好。

8·The splitting method adopted for preparing single chiral 2-heterocycle substituted dihydro pyrimidine compounds has the product yield more than 20 percent and the optical purity above 98 percent;

采用本发明的拆分方法制备单一手性2-杂环取代的 二氢嘧啶化合物的产物收率为20％以上，光学纯度达98％以上；

9·It has excellent optical character and pigment performance, high purity, whiteness, tint reducing power and dispersibility.

它具有优良的光学性质和颜料性能，纯度高，白度，色彩还原能力和分散性。

10·Optical glass is made of raw materials-sand, lime, and soda of the highest purity.

光学玻璃是由高纯度原料：沙子、石灰、纯碱制成的。