溶剂

Sucrose stearates with the different proportion of monoesters were prepared by reacting sucrose and alkyl searate in the presence of alkali catalyst by "methanol process","low soap solvent-free process"and"medium soap solvent-free microemulsion process".

在碱性催化剂存在下，以蔗糖、硬脂酸酯为原料，采用甲醇法、低皂无溶剂法及中皂无溶剂微乳法合成了一系列单酯含量不同的硬脂酸蔗糖酯。

Ionic liquid has intrinsically useful properties, such as thermal stability, lower melting point, negligible vapour pressure, acidity changeable and highly solvating, low viscosity and density.

离子液体与传统的纤维素溶剂相比，具有低挥发性、可回收利用、热性质稳定的优点，避免了有机溶剂所造成的污染。

Information from other methods may be necessary, because some solvates are known to be stable at temperatures above the boiling point of the solvent.

其它方法提供的信息可能也是必要的，因为有些溶剂化物通常在溶剂的沸点以上是稳定的。

The binding free energy calculations by the following equation:〓 In first equation, the left parenthesis denotes the absolute free energies associated with complex system G〓 and unbound protein G〓, respectively, while the right parenthesis contains solvated inhibitor G〓 and solvent water G〓.

预测结合自由能的计算公式如下：〓ΔG〓是体系结合自由能，G〓是复合物的绝对自由能，G〓是未结合抑制剂的蛋白质绝对自由能，G〓被溶剂化的抑制剂绝对自由能，G〓溶剂水的绝对自由能。

For Et4NBF4/AN, the least ionic transfer and diffusion resistance led to an excellent capacitance retention property. For Bu4NBF4, due to the larger solvated ion diameter and higher ion transfer resistance, the capacitive performances were inferior to those of Et4NBF4 in terms of specific capacitance and power density.

实验结果表明：对于高微孔比率的电极材料，由于Et4N+的溶剂化离子半径小于Et4N+的溶剂化离子半径，因此，Et4NBF4体系下的电荷存储密度和有效表面利用率更高，电容性能优于Bu4NBF4。

This is because that the solvent polarity affects ICT process in two ways: on the one hand, the ICT state is better solvated in more polar solvent, which favors the ICT process; whereas on the other hand, the rates of non-radiative decay and intersystem crossing of the ICT state are increased, which unfavors the ICT process.

这是因为溶剂极性增大，一方面ICT态被更好地溶剂化，ICT过程活化能降低，有利于ICT过程的发生；另一方面ICT态非辐射跃迁和系间窜跃速率增大，导致ICT荧光猝灭。

Four different SPE cartridges were tested for extracting six triazines, including atrazine, simazine, prometryn, desethylatrazine, 2-hydroxyatrazine and desisopropylatrazine, and finally ENVI-18 was selected as optimal. The method for solid phase extraction was further systematically studied for details.

考察了4种不同固相萃取柱对三嗪类化合物的吸附效果，最终选择ENVI-18固相萃取柱用于萃取地表水中的三嗪类化合物；系统研究了环境水样中三嗪类化合物的最佳固相萃取条件，选择洗脱溶剂为甲醇，洗脱溶剂用量5 mL，水样在萃取前不需要添加甲醇，不调节pH值。

Nine biological pesticides were formulated with different solvents and emulsifiers to control rice blast in paddy field, it was showed that the best control effect was 65.69% with methanol as solvent and Tween 80 as emulsifier.

选择不同的溶剂和乳化剂交叉配制成9种生物农药进行田间小区试验，结果表明：以甲醇作溶剂，吐温80作乳化剂防效最好，达65.69%。

Based on the similar compatibility rule, similarity rule of solubility parameter and solventing rule of solvent, the design thinking of pastic paint remover was discussed, the design experience was introduced and the choice principle of auxiliary agent was resumed.

以溶剂的相似相溶性规律、溶解度参数相近规律和溶剂化规律为基础，探讨了塑料退漆剂的设计思路，介绍了设计经验，并简要叙述了助剂的选择原则。

In the mixed solvent of dimethyl phthalate / TBP or phenyl ether / TBP, the selectivity for styrene oxide is good but the conversion of styrene is low due to the coordination to the catalyst of the solvent.

邻苯二甲酸二甲酯或二苯醚等与磷酸三丁酯的混合溶剂中环氧化的选择性较高，但由于溶剂对催化剂的配位作用抑制了催化剂的活性，苯乙烯转化率很低；当部分的邻苯二甲酸二甲酯或二苯醚被甲苯取代后，苯乙烯的转化率提高，生成环氧苯乙烷的选择性不变。

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。