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The results show that tetraphenylborate lipophilic anion and terbutaline enantiomorph form two lipophilic salt complexes, which facilitates the solubilization of the enantiomorph in the organic phase.

实验表明，BPh4与特布他林对映体形成2种疏水性复合盐，促进对映体在有机溶剂中的溶解。

The program can defragment drives manually, or fully automatic in the background, keeping your system at peak performance by avoiding build-up of file fragmentation.

在建立映像档案后，当你的电脑的问题出现的时候，你可以使用之前制作的映像档案还原到先前电脑良好的状态。

At the same time, by applying the continuous selection theorem and fixed point ...

同时，我们利用集值映像的连续选择定理和不动点定理，在拓扑矢量空间中建立了一类关于集值映像的拟平衡问题和广义拟平衡问题的平衡点的存在性定理，推广了某些相应的结果。

Results: Under the experimental conditions adopted, the baseline separation of ephedrin and ephedrine levorotatory was obtained.

结果：麻黄碱及伪麻黄碱对映体得到良好分离，并满足进行左旋麻黄碱中对映异构体杂质检查所需要的条件。

However, the formation of metal chelation at one or two side of biphenyl resulted a pair of enantiomers of monometallic or bimetallic complexes. Moreover, if the coordinating groups have chiral element (e.g., chiral oxazolines), the diastereomeric metal complexes will be formed.

而且，如果配位基团上带有手性元素，它们跟金属配位后得到一对非对映异构体，由于手性元素的影响，形成这一对非对映异构体的能量是有差异的。

Owing to the abroad application of Candida rugosa lipase in the resolution of racemic aminoacides, the prepared lipase was used in the resolution of phenylglycine and tert-leucine. Through the optimization of the reaction conditions, such as reaction substrate, pH, temperature, ion strength and additives, enantiomeric excesses for phenylglycine and tert-leucine reached 96% and 90.1%, respectively, enantiomeric ratio came up to 28. 9 and 15. 4, respectively.

鉴于该酶广泛应用于手性化合物的拆分研究，本论文中选用了两种手性氨基酸作为拆分对象，通过对反应体系中一系列条件的优化，包括底物、pH、温度、离子强度以及添加物的使用，苯甘氨酸和叔亮氨酸的对映体过量值分别达到96%和90.1%，对映催选择率分别达到28.9和15.4。

In the case of racemate 2, better resolution was obtained when using 2-propanol as modifier in the place of methanol and ethanol, while for racemate 1, methanol provided the best performance. Both retention and resolution decreased with increase in pressure.

结果表明对映体的保留因子均随着改性剂含量的增加而显著下降，当改性剂含量大于10%时，保留因子的下降趋势变缓；分离帕罗酮酯时，异丙醇作改性剂的分离度和分离因子均最大，分离帕罗醇对映体时，甲醇是最佳的改性剂。

Objective To develop a RP-HPLC method for the enantiomeric separation of indapamide on a new chiral column CHIRALCEL OD-RHcellulose tris(3,5-dimethylphenylcarbamatecoated on a5μm silica-gel substratefor pharmaceutical study of indapamide.Methods To obtain optimistic method for the enantiomeric separation of indapamide,the inferences of the composition of mobile phase,the flow rate and the temperature on the enantiomer retentivity and selectivity were examined and discussed.

目的采 用新型反相手性色谱柱CHIRALCEL OD-RH(纤维素3，5-二甲基苯基氨基甲酸酯涂敷在5μm硅胶上)，建立吲达帕胺对映体的反相高效液相色谱拆分方法，为研究吲达帕胺手性对映体药代动力学提供基础。

Based on the common symbolic dynamic method, a novel time-varying symbolic dynamic method is proposed. The Logistic map is used to test the properties of the method.

本文在符号动力学方法的基础上，对映像系数进行修正，针对耦合单峰Logistic映射，提出一种基于时变映像系数恢复信号初值的新方法。

A general theme of these processes is the combination of an enantioselective enzyme with a chemical reagent,the latter being used either to racemise the unreactive enantiomer or alterna...

在催化反应过程中，一般都是对映体选择性酶与化学试剂的相结合，化学试剂一般常用于催化非活性对映体发生去消旋反应或是回收去消旋化过程中的中间体。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。