| 电位滴定法测定环己胺中微量水分稳定性的改进 |
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| 引用本文： | 丁春桃.电位滴定法测定环己胺中微量水分稳定性的改进[J].广东化工,2011,38(4):134+163-134,163. |
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| 作者姓名： | 丁春桃 |
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| 作者单位： | 中国石化集团南京化学工业有限公司,江苏,南京,210048 |
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| 基金项目： | 中国石化集团南京化学工业有限公司青年科技攻关项目 |
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| 摘 要： | 实际工作中环己胺中微量水分测定的不稳定。改进采用甲醇︰乙酸=4︰1反应体系测定,结果表明相对标准偏差小于0.5%,加标回收率为98.9%～101.5%,终点明确,提高了分析的准确度。
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| 关 键 词： | 电位滴定法 环己胺 微量水分 改进 |
Improvement for the Stability of the Trace Moisture Determination in Cyclohexylamine by Potentiometric Titration |
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| Ding Chuntao.Improvement for the Stability of the Trace Moisture Determination in Cyclohexylamine by Potentiometric Titration[J].Guangdong Chemical Industry,2011,38(4):134+163-134,163. |
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| Authors: | Ding Chuntao |
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| Affiliation: | Ding Chuntao(SINOPEC Nanjing Chemical Industrial Co.,Ltd.,Nanjing 210048,China) |
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| Abstract: | Unstability for the trace moisture determination in cyclohexylamine in the practical work was existed.Improvement by using methanol and acetic acid which the volume ratio was 4︰1,The results showed that the relative standard deviation(RSD) was smaller than 0.5 % and the recovery rate was 98.9 %～101.5 %.End clear and the accuracy can be increased improvement. |
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| Keywords: | potentiometric titration cyclohexylamine trace moisture improvement |
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