乙酸乙酯是性能优良的溶剂、萃取剂和重要的化工原料。
Ethyl acetate is an excellent solvent and extractant and is an important chemical material too.
摘要目的：建立一种气相色谱法同时测定注射用青霉素钠中有机溶剂丁醇、乙酸乙酯、乙酸丁酯残留量的方法。
To found a method to detect the residual solvents of penicillin sodium for injection: butanol acetic ether and butyl acetate.
然后利用相似相溶原理选择了四种有机溶剂进行剥离实验：丙酮、二甲苯、二甲基甲酰胺及乙酸乙酯。
Then, chose acetone, ethyl acetate, xylene and dimethylformamide according to solubility parameter close principle as solvents to dissolve coating finishing agents.
芦荟苷在甲醇溶剂中不稳定，甲醇不适宜做芦荟苷标准样的溶剂，宜改用乙酸乙酯。
Aloin is unstable when dissolved in methanol, acetyl acetate was appropriate for use as the solvent in standard solution.
结果表明，乙酸乙酯是最理想的有机溶剂。
It was found that ethyl acetate was the optimal organic solvent.
乙酸乙酯不仅作两相反应的溶剂，而且也提供还原剂乙醇。
Ethyl acetate displayed not only as a solvent for two-phase reaction, but also as a pro-reducing (agent).
方法：以乙酸乙酯为溶剂用超声震荡提取法提取吴茱萸碱和吴茱萸次碱。
METHODS: Evodiamine and rutaecarpine were extracted with the solvent ethyl acetate and the ultrasonic extractor.
方法雷公藤根茎先用乙醇提取，然后用乙酸乙酯洗提，最后挥干溶剂得干品。
METHODS using alcohol to extract Tripterygium wilfordii, and using acetic ether to elution, and then vaporizing acetic ether to obtain dry powder.
结果：以60%丙酮为溶剂进行提取，以乙酸乙酯为溶剂进行纯化，鞣质纯度可达到75%左右，且重复性较好。
Results: the purity of tannins can be as high as reach 75% when it's extracted with 60% acetone and purified with ethyl acetate, and the process has good reproducibility.
实验表明，山稔子水、无水乙醇、甲醇、50%甲醇、正己烷和乙酸乙酯的提取物对猪油和花生油均具有抗氧化作用，而且其抗氧化作用的强弱与溶剂的极性直接相关。
The results showed that all the water, alcohol, methanol, 50% methanol, n-hexane and acetic ester extracts have antioxidation on lard and peanut oil.
前言：目的：建立一种气相色谱法同时测定注射用青霉素钠中有机溶剂丁醇、乙酸乙酯、乙酸丁酯残留量的方法。
Objective: to found a method to detect the residual solvents of Penicillin Sodium for Injection: butanol, acetic ether and butyl acetate.
采用乙酸乙酯为溶剂，粉状活性炭吸附精制异山梨醇粗品，得出适宜的精制条件，其精制品质量符合USP2 4版质量标。
Using ethyl acetate as solvent, isosorbide can be refined with actived carbon, the suitable condition can be obtained and the product quality meets the quality standard of USP24.
本研究采用乙酸乙酯为溶剂，对甲苯磺酸为催化剂，提高了反应速度和产物质量。
The use of ethyl acetate as solvent and p-toluene sulfonic acid as a catalyst has increased the reaction rate and the product yield.
方法用高分辨液质联用分析法，对其甲醇提取物及二氯甲烷和乙酸乙酯混溶剂提取物进行了成分分析。
Method Methanol and mixed solvent of chloroform and ethyl acetate extracts from Cordyceps formosana were analyzed with HPLC-DAD-HRMS.
最佳结晶溶剂：水饱和乙酸乙酯。
Ethyl acetate saturated with water was the best solvent for crystallization.
个别高档油墨用乙酸乙酯挥发速度太快，用乙酸正丁酯有气味残留，乙酸异丙酯是非常好的油墨溶剂。
The volatility of some specific high-end printing inks are fast as they use EAC and some of their smell bad as they use BAC, so isopropyl Acetate is a good solvent of high-end printing ink.
发酵菌丝体乙醇提取物不同溶剂萃取组分对活性氧的清除能力强弱为正丁醇总提物组分、乙酸乙酯组分、乙醇组分、氯仿组分；
The sequence of scavenging of active oxygen isn-butanol, ethyl acetate, ethanol, chloroform; the scavenging of active oxygen is dose-dependent on the content of total flavones.
发酵菌丝体乙醇提取物不同溶剂萃取组分对活性氧的清除能力强弱为正丁醇总提物组分、乙酸乙酯组分、乙醇组分、氯仿组分；
The sequence of scavenging of active oxygen isn-butanol, ethyl acetate, ethanol, chloroform; the scavenging of active oxygen is dose-dependent on the content of total flavones.
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