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| 本帖產(chǎn)生 1 個 翻譯EPI ，點(diǎn)擊這里進(jìn)行查看 | ||
2311537731銅蟲 (初入文壇)
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[求助]
誰能幫我翻譯這段話，謝謝啦，我的論文摘要
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| 本文考察了鹽酸-異丙醇法定量測定雙長鏈烷基甲基叔胺的可靠性，研究了雙長鏈烷基甜菜堿的合成中，產(chǎn)物中未反應(yīng)的原料叔胺含量的分析測定，進(jìn)而得出反應(yīng)的轉(zhuǎn)化率，總結(jié)了原料叔胺中含有ECHS和水時對滴定終點(diǎn)產(chǎn)生的影響。并考察了滴定體系中甜菜堿的存在對PH指示劑滴定終點(diǎn)是否有影響，做了一系列考察。實(shí)驗(yàn)表明，鹽酸-異丙醇滴定法測得的未反應(yīng)雙長鏈烷基叔胺的含量是可靠的， 并且基于未反應(yīng)叔胺含量測定計(jì)算叔胺轉(zhuǎn)化率同樣是可靠的，另外，用鹽酸-異丙醇直接滴定法測定甜菜堿中游離叔胺含量時，對等量的原料叔胺，不同量ECHS和水的存在對鹽酸異丙醇滴定法分析叔胺含量影響不大，滴定結(jié)果基本一致，同時滴定體系中甜菜堿的存在對PH指示劑的影響也忽略不計(jì)。 |
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genhunter
至尊木蟲 (著名寫手)
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【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
2311537731: 金幣+35, 翻譯EPI+1, ★★★很有幫助 2015-05-15 16:53:26
2311537731: 金幣+35, 翻譯EPI+1, ★★★很有幫助 2015-05-15 16:53:26
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本文考察了鹽酸-異丙醇法定量測定雙長鏈烷基甲基叔胺的可靠性，研究了雙長鏈烷基甜菜堿的合成中，產(chǎn)物中未反應(yīng)的原料叔胺含量的分析測定，進(jìn)而得出反應(yīng)的轉(zhuǎn)化率，總結(jié)了原料叔胺中含有ECHS和水時對滴定終點(diǎn)產(chǎn)生的影響。 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樓2015-05-15 00:07:43
燦燦妹
至尊木蟲 (著名寫手)
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【答案】應(yīng)助回帖
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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樓2015-05-15 00:18:27
genhunter
至尊木蟲 (著名寫手)
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【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
2311537731: 金幣+30 2015-05-15 17:23:07
2311537731: 金幣+30 2015-05-15 17:23:07
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并考察了滴定體系中甜菜堿的存在對PH指示劑滴定終點(diǎn)是否有影響，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. 實(shí)驗(yàn)表明，鹽酸-異丙醇滴定法測得的未反應(yīng)雙長鏈烷基叔胺的含量是可靠的， 并且基于未反應(yīng)叔胺含量測定計(jì)算叔胺轉(zhuǎn)化率同樣是可靠的，另外，用鹽酸-異丙醇直接滴定法測定甜菜堿中游離叔胺含量時，對等量的原料叔胺，不同量ECHS和水的存在對鹽酸異丙醇滴定法分析叔胺含量影響不大，滴定結(jié)果基本一致，同時滴定體系中甜菜堿的存在對PH指示劑的影響也忽略不計(jì)。 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樓2015-05-15 00:46:51
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