溶剂

Besides, reaction conditions including the concentration of acetic acid and the solvents of photochemical reaction were also studied.

通过研究乙酸浓度和光化溶剂对反应的影响，对合成工艺进行改进和优化。

Moreover, the effects of moisture, solvent blank, added amount of acetic anhydride and temperature on determination were investigated.

同时，考察了水分含量、溶剂空白、乙酸酐加入量、温度对测定结果的影响。

The effects of the amount of catalyst, the amount of acetic anhydride, reaction time, and addition of solvents etc. on the acylation reaction were investigated.

考察了催化剂用量、乙酐用量、反应时间和溶剂的加入等因素对该酰化反应的影响。

Citric acid anhydride was synthesized by citric acid and acetic anhydride with acetic acid as solvent.

以柠檬酸和乙酸酐为原料，乙酸为溶剂合成柠檬酸酐。

Acetone is widely used as an excellent organic solvent in industry.

丙酮是应用广泛、性能优良的有机溶剂之一。

It can be dissolved in Methanol, Ethanol and acetone, but not in water.

可溶于甲醇、乙醇、丙酮等有机溶剂，不溶于水。

Objective: To develop a GC method for determination of acetone in sulfadimidine.

目的：建立磺胺二甲嘧啶合成中所用有机溶剂丙酮残留量的测定方法。

A method for the determination of residue of acetone solvent was established using head-space gas chromatography.

建立了克拉霉素中丙酮溶剂残留量的测定方法。

It is readily soluble in toluene, MEK, acetone and other solvents commonly used in adhesive and coating systems.

这种新的改性剂可以溶于甲苯、丁酮、丙酮和其他胶粘剂和涂料系统常用的溶剂中。

A mixed solvent of hexamethylene and acetone(1∶1) was used as extracted solvent.

以V∶V=1∶1为提取溶剂，优化了微波辅助提取的条件。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！