结果超临界CO2萃取中加入非离子表面活性剂的多元醇混合体系可大大提高丹酚酸b的提取率。
ResultsSupercritical CO2 adding nonionic surfactant mixed system of the polyol could significantly enhance extraction rate of Salvianolic acid B.
考察了醇酸比，催化剂酸度，催化剂用量，反应时间，反应温度对酯化产率的影响。
The effect of acid-alcohol ratio, acidity of catalyst, amount of catalyst, reaction time, and reaction temperature were investigated.
方法以绿原酸含量和提取物得率为考察指标，通过对水提和水提醇沉两种方法进行比较。
Methods The extraction process was investigated by solvent extraction and ethanol precipitation, with extractive yield and chlorogenic acid as the indexes.
该回归方程在自变量的回归范围内适用于丙烯酸与十二醇、十四醇、十六醇酯化转化率的预测和控制上。
It is possible to predict and controll the conversion rate of esterifications such as acrylic acid with dodecanol, tetradecanol and hexadecanol by this equation.
考察了催化剂的用量、微波功率、微波辐射时间、醇酸比对酯产率的影响。
The influences of amount of catalysts, microwave power, microwave irradiation time and the mole ratio of alcohol to acid were studied.
以二苯胺甲烷磺酸盐为催化剂，合成了丙酸异戊酯，考察了反应时间、催化剂用量、醇酸摩尔比等因素对酯化率的影响。
The effect of different factors, such as reaction time, the amount of catalyst and the ratio of iso-amyl alcohol to propanoic acid on the yield of iso-amyl propionate were carefully studied.
研究了催化剂用量、酸醇物质的量比以及反应时间等因素对产品酯化率的影响。
The influence such as molar ratio of salicylic acid to isobutyl alcohol, amount of catalyst, and reaction time on the yield of isobutyl salicylate were discussed.
采用微波辐射法水解植酸制备肌醇，缩短了水解时间和获得了较好的产率。
The inositol was prepared by hydrolysis of phytic acid with microwave radiating.
考察了催化剂、酸醇比、带水剂和反应时间等因素对产率的影响。
Thefactors such as the catalyst, acid alcohol mole proportionality, water carrier and reactiontimes are studied as well as the yield which the process of reaction influences.
利用正交试验研究了酯交换法制备卤虾油脂肪酸乙酯的工艺，分析了催化剂用量、反应温度、反应时间、无水乙醇用量等对醇解率的影响。
Meanwhile the influence of the amount of catalyst alkali ethylate and absolute alcohol, the temperature and time of reaction on interesterification was studied.
探讨了酸醇物质的量的比，催化剂的用量，反应时间和反应温度对酯化率的影响及催化剂的重复使用情况。
The effects of molar ratio of anhydrous ethanol to glacial acetic acid , dosage of catalyst, reaction temperature and reaction time on the esterification ratio and reuse of catalyst were discussed.
本文讨论了反应温度、醇酸摩尔比、反应物流速、树脂床高等因素对产率的影响，按选定的最佳条件，总产率可超过80%。
Some factors affection reaction such as temperature, moles ratio of reactants, flow rate and height of resin bed were studied. Under our optimum conditions the total yield was over 80%.
考查了催化剂用量、反应时间、醇酸物质的量比及带水剂用量对乙酸酯化率的影响。
The effects of catalyst amount, reaction time, molar ratio of sec-butanol and acetic acid, and amount of deaquation reagent on the reaction were studied.
本发明方法是用两种不同聚合度的聚乙烯醇溶液与重铬酸铵混合，得到高分辩率的、耐水冲洗显影的感光胶液。
Two kinds of PVA solution, which have different polymerizing degrees, are mixed with ammonium dichromate to obtain a high-resolution, water-proof developing photosensitive glue solution.
考察了醇酸比、催化剂用量、反应时间及带水剂对产率的影响，确定了该反应的最佳条件。
The effect of molar ratio of n-butanol to lactate, the amount of catalyst, reaction time and water-carrying agent on the yield of ester was studied. The optimal condition of reaction was determined.
中华蚱蜢各类型蛋白质的提取率分别为：水溶性蛋白质43.4%、酸溶性蛋白质1.8%、碱溶性蛋白质1.9%、醇溶性蛋白质0.3%。
The protein of Acrida cinerea (Thunberg) was divided into water-dissolved protein (43.4%), acid-dissolved protein (1.8%), alkaline-dissolved protein (1.9%) and mellow-dissolved protein (0.3%).
中华蚱蜢各类型蛋白质的提取率分别为：水溶性蛋白质43.4%、酸溶性蛋白质1.8%、碱溶性蛋白质1.9%、醇溶性蛋白质0.3%。
The protein of Acrida cinerea (Thunberg) was divided into water-dissolved protein (43.4%), acid-dissolved protein (1.8%), alkaline-dissolved protein (1.9%) and mellow-dissolved protein (0.3%).
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