查询词典 optimum conditions

In this paper,the research history of microscale chemical experiment is briefly introduced,the preparation of cinnamic acid by means of microscale apparatus is investigated,and the characteristics of microscale chemical experiment and the optimum conditions are studied.

简单介绍了微型化学实验的研究历史，并以肉桂酸的制备实验为研究对象，分析了微型有机化学实验的特点，研究了肉桂酸制备的微型实验的最佳反应条件。

Results: The optimum conditions were found to be as follows: the molar ratio of isoamyl alcohol to cinnamic acid was ...

对甲苯磺酸是合成肉桂酸异戊酯的良好催化剂，具有实际应用价值，该实验合成工艺简单，酯收率较高。

Under the optimum conditions of a cyclopentene amount of 1.0 mol, a molar ratio of cyclopentene to water of 0.25, a reaction temperature of 120 ℃, a reaction time of 4.0 h, a main catalyst dosage of 4.0 g and a cocatalyst dosage of 0.8 g, the yield of cyclopentanol reached 68.6%.

确定适宜的反应条件为：环戊烯1.0 mol，n﹕n=1﹕4，反应温度120 ℃，反应时间4.0 h，硅胶负载铌酸主催化剂用量4.0 g，三（3，6-二氧杂庚基）胺助催化剂0.8 g。在此反应条件下，环戊醇收率68.6%。

The obtaintion of decolor oil and decolor oil efficiency were considered as standerd, decolorate method was studied in this paper, the result showed the optimum conditions as followed: the decoloration carrier is bleaching and activity carbon, its ratio is 10:1 and the add quantity is 2%, the decoloration is 90 ℃, the operation time is 20 min.

以脱色油得率和脱色效率为指标，研究大豆胚芽油脱色方法，试验表明：采用白土＋活性炭(10：1)为脱色剂，脱色剂添加量为2%，在90℃温度下对大豆胚芽油脱色20min，大豆胚芽油得率高、脱色效果好。

The experimental results showed that under the optimum conditions the concentrations of dimethylbenzene and butylacetate were above 95% in top distillate product, and the yield of dimethylbenzene and butylacetate was 62% and 99.45,respectively.

结果表明：在最佳的工艺条件下，二甲苯和醋酸丁酯在馏出液中的含量均达到95%以上，收率分别达到62%和99.4%。

Under the optimum conditions, the extraction rates of the two most important inhibitors, namely formic acid and acetic acid, were up to 84% and 98%, respectively.

在最佳试验条件下，两种最重要的抑制物甲酸和乙酸的抽提率分别达到84%和98%。

ConclusionUnder the above optimum conditions the content of gentiopicrin was 34.57mg·g-1 from this batch of Gentiana scabra Bunge.

在优化的萃娶纯化条件下制得这批龙胆原料龙胆苦苷平均含量为34.57mg·g-1。

The total yield of glucuronic acid and glucuronolactone reached 60% at optimum conditions, and the catalyst had good selectivity.

在Pd负载量为1%、温度70 ℃、pH值为9的条件下，葡萄糖醛酸及内酯的总收率达到60%，反应选择性良好。

Results:(1) The optimum conditions for protease induction were: 26℃, initial pH 6.0 and inoculative quantity of fungal hyphae=1g/100ml, using chitin as the inducer;(2) Pr1 was purified and its molecular weight was determined as 33kDa.

结果：(1)以几丁质为唯一碳氮源，在26℃，初始pH值6.0，1%的菌丝接种量为最佳诱导条件；(2)分离得到的类枯草杆菌蛋白酶，并测定其分子量约为33kDa。

With LaCl_3·7H_2O as catalyst to replace conventional liquid inorganic acid,and the esterificationbetween isobutyric acidand n-butyl alcohol as a probe reaction,the optimum conditions were investigated and various isobutyrate s were synthesized over it in this paper.

7H2O替代传统液体无机酸为催化剂，以合成异丁酸正丁酯为探针反应考察催化酯化反应的优化条件，并在此条件下合成了多种异丁酸酯，比较了不同催化剂对催化合成异丁酸正丁酯的影响。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。