反应率

The results showed that new-type solid ferric potassium alum was a good catalyst for the synthesis of ethyl decanoate and the optimum conditions were as follows: molar ratio of acid to alcohol was 1:2, the use level of catalyst was 0.6g/0.05 mol capric acid, water-taking reagent benzene was 15 mL, reaction time was 2.5 h and the yield of ethyl decanoate could reach 98%.

结果表明，新型固体酸铁钾矾是合成葵酸乙酯的良好催化剂，在酸醇物质的量比为1：2，催化剂用量为0.69（0.05 mol癸酸），带水剂苯为15mL，反应时间为2.5h的条件下，癸酸乙酯的酯化率可达98%。

Based on the orthogonal experiment, the optimum synthetic conditions for dimethyl fumarate were as follows: the molar ratio of carbinol to fumaric acid was 6∶1, mass of the catalyst was 1.0%, the volume of the water removing reagent benzene was 10 mL, and the reaction time was 3 h.

催化合成富马酸二甲酯的最佳条件为： n∶ n=6∶1，催化剂用量为1.0%，带水剂苯用量为10 mL，反应时间为3 h，催化剂重复使用7次，酯化率大于90%。

The results showed that the amount of artemisinin was 1.5 g, the use level of deionized water 300 mL, the amount of reductant 1.0 g, the reaction time 1.5 h and the carbinol amount of solvent 100 mL, the yield of the product was 74.25% and the purity was 99.13% respectively.

实验表明，最佳工艺条件为：青蒿素用量为1.5 g，去离子水用量为300 mL，还原剂硼氢化钠用量为1.0 g，反应时间为1.5 h，溶剂甲醇用量为100 mL。在此条件下，产物产率为74.25%，纯度高达99.13%。

The effects of the reaction time,the concentration of chloral and the pH on dechlorination were obtained,and the results showed that the dechlorinate effect was obvious.

实验结果表明，还原铁粉对三氯乙醛有明显的脱氯作用，脱氯率随三氯乙醛质量浓度的减小而增大，随pH值的减小而增大，随反应时间的增加而增大。

Background and Objective The goals of this study were to label the antisense oligodeoxynucleotidesindirectly by Chloramine Tmethod and Iodogen method,then to discuss the labeling yields、radiochemical purity、specific activity and stability in different conditions.

目的与研究背景：本课题采用氯胺-T法和Iodogen法两种标记方法进行反义寡脱氧核苷酸的125I间接标记对比研究，并在两种方法中分别探讨不同反应条件下的标记率及标记产物的放化纯、比活度和稳定性。

Background and Objective The goals of this study were to label the antisense oligodeoxynucleotides indirectly by Chloramine T method and Iodogen method, then to discuss the labeling yields、radiochemical purity、specific activity and stability in different conditions. We discussed the right labeling method and conditions in order to lay the experiment foundation of the antisense medicament labeled by iodine for clinical application.

目的与研究背景：本课题采用氯胺-T法和Iodogen法两种标记方法进行反义寡脱氧核苷酸的125I间接标记对比研究，并在两种方法中分别探讨不同反应条件下的标记率及标记产物的放化纯、比活度和稳定性。

And solicitation reagent in the preparation of 2,4- dichlorofluorobenzene from 2-Chloro-1-fluoro-4-nitrobenzene via reactive distilled chlorate were investigated.

和引发剂等因素对反应速度及产率的影响。

P-nitrophenoxy ethanol is synthesized with p-nitrophenol and chlorohydrin in the presence of water solution of KOH,with better quality and high yield of the product,and with much lower costs over the reported methods.

以对硝基苯酚和氯乙醇为原料，在KOH的水溶液中进行反应，以较高收率合成了对硝基苯氧乙醇，此方法成本低、纯度高，同时考察了多种因素对产率影响。

The result showed that the mutagenecity of water increased in all samples treated with chlorine, while mutagenic potential was negative in source water samples not treated with chorine.

水样采自某单位自备水源。试验结果表明，未氯化自来水有机提取物致突变反应阴性，加氯自来水样诱发沙门氏菌致突变率升高；在一定范围内，随氯浓度增加，不会显著增加水样的致突变性。

Temperature and reaction time of wastewater on the removal rate of COD and chroma were investigated.

考察了废水pH、粒度、炭铁比、温度、反应时间等因素对废水COD和色度去除率的影响。

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！