| 查看: 569 | 回复: 3 | |||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | |||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | |||
[求助]
谁能帮我翻译这段话，谢谢啦，我的论文摘要
|
|||
| 本文考察了盐酸-异丙醇法定量测定双长链烷基甲基叔胺的可靠性，研究了双长链烷基甜菜碱的合成中，产物中未反应的原料叔胺含量的分析测定，进而得出反应的转化率，总结了原料叔胺中含有ECHS和水时对滴定终点产生的影响。并考察了滴定体系中甜菜碱的存在对PH指示剂滴定终点是否有影响，做了一系列考察。实验表明，盐酸-异丙醇滴定法测得的未反应双长链烷基叔胺的含量是可靠的， 并且基于未反应叔胺含量测定计算叔胺转化率同样是可靠的，另外，用盐酸-异丙醇直接滴定法测定甜菜碱中游离叔胺含量时，对等量的原料叔胺，不同量ECHS和水的存在对盐酸异丙醇滴定法分析叔胺含量影响不大，滴定结果基本一致，同时滴定体系中甜菜碱的存在对PH指示剂的影响也忽略不计。 |
回复此楼» 猜你喜欢
求调剂
已经有8人回复
-
353求调剂
已经有8人回复
-
材料工程302分求调剂
已经有3人回复
-
求
已经有3人回复
-
材料与化工363求推荐
已经有4人回复
-
085602调剂 初试总分335
已经有11人回复
-
081700学硕，323分，一志愿中国海洋大学求调剂学校
已经有12人回复
-
085410人工智能 初试316分 求调剂
已经有4人回复
-
285求调剂
已经有10人回复
-
材料化工306分找合适调剂
已经有11人回复
genhunter
至尊木虫 (著名写手)
- 翻译EPI: 387
- 应助: 259 (大学生)
- 金币: 9757.4
- 散金: 10
- 红花: 60
- 帖子: 2484
- 在线: 1793小时
- 虫号: 2558361
- 注册: 2013-07-22
- 专业: 肿瘤化学药物治疗
【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
2311537731: 金币+30 2015-05-15 17:23:07
2311537731: 金币+30 2015-05-15 17:23:07
|
并考察了滴定体系中甜菜碱的存在对PH指示剂滴定终点是否有影响，做了一系列考察。 We also evaluated if the presence of dialkylated carboxybetaine had any effect on pH indicator in determining the end point of titration. 实验表明，盐酸-异丙醇滴定法测得的未反应双长链烷基叔胺的含量是可靠的， 并且基于未反应叔胺含量测定计算叔胺转化率同样是可靠的，另外，用盐酸-异丙醇直接滴定法测定甜菜碱中游离叔胺含量时，对等量的原料叔胺，不同量ECHS和水的存在对盐酸异丙醇滴定法分析叔胺含量影响不大，滴定结果基本一致，同时滴定体系中甜菜碱的存在对PH指示剂的影响也忽略不计。 The results indicate that the amount of unreacted N-methyl, N, N-dialkyl tertiary amine measured using HCl-isopropanol titration method is reliable, and the conversion rate of the tertiary amine calculated from the amount of the leftover tertiary amine was also reliable. In addition, variable ECHS content and the presence of water had minimal effect on the measurement of free tertiary amine content in dialkylated carboxybetaine using HCl-isopropanol direct titration method using an equal amount of the tertiary amine reactant, the results are basically the same, meanwhile the presence of dialkylated carboxybetaine also had negligible effect on the reading of the pH indicator. |
4楼2015-05-15 00:46:51
genhunter
至尊木虫 (著名写手)
- 翻译EPI: 387
- 应助: 259 (大学生)
- 金币: 9757.4
- 散金: 10
- 红花: 60
- 帖子: 2484
- 在线: 1793小时
- 虫号: 2558361
- 注册: 2013-07-22
- 专业: 肿瘤化学药物治疗
【答案】应助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
2311537731: 金币+35, 翻译EPI+1, ★★★很有帮助 2015-05-15 16:53:26
2311537731: 金币+35, 翻译EPI+1, ★★★很有帮助 2015-05-15 16:53:26
|
本文考察了盐酸-异丙醇法定量测定双长链烷基甲基叔胺的可靠性，研究了双长链烷基甜菜碱的合成中，产物中未反应的原料叔胺含量的分析测定，进而得出反应的转化率，总结了原料叔胺中含有ECHS和水时对滴定终点产生的影响。 We evaluated the reliability of qualitative measurement of N-methyl, N, N-dialkyl tertiary amine with long alkyl chains using HCl-isopropanol method, and applied this to quantify the content of the leftover tertiary amine reactant in the synthesis of a long chain dialkylated carboxybetaine, in order to estimate the conversion rate of the reaction. We also highlighted the effects of the ECHS content in the tertiary amine and the presence of water on the determination of the end point in titration. |
2楼2015-05-15 00:07:43
灿灿妹
至尊木虫 (著名写手)
- 翻译EPI: 68
- 应助: 135 (高中生)
- 贵宾: 1.097
- 金币: 14467.1
- 散金: 3921
- 红花: 102
- 沙发: 3
- 帖子: 2121
- 在线: 396.8小时
- 虫号: 1783324
- 注册: 2012-04-27
- 性别: GG
- 专业: 环境工程
【答案】应助回帖
|
Reliability of using hydrochloric acid - isopropyl alcohol method to quantitatively determine double-long-chain alkyl tertiary amine was investigated in this paper. The reaction conversion of the synthesis of double long chain alkyl lycine was studied based on the determination of tertiary amine content in unreacted raw materials, and the effects of tertiary amine raw material with ECHS and water to titration endpoint were summarized. A series of investigation of the existence of lycine in titration systems were made to evaluate whether it affects the titration endpoint of pH indicator. Experiments showed that using hydrochloric acid - isopropyl alcohol method to determine the content of unreacted double-long-chain alkyl tertiary amine was reliable, and based on the content determine, the the conversion rate was also reliable through the determination and calculation. Moreover, in the process of using hydrochloric acid - isopropyl alcohol method to measure the content of free tertiary amine in lycine, it has little influence on tertiary amine content analysis for the determination process with different amount ECHS and water when the raw material tertiary amine was equivalent, the titration results are basically identical. Simultaneously, the effect of existence of lycine in titration systems to the titration endpoint of pH indicator also could be ignored. |
3楼2015-05-15 00:18:27
5