| 两点法确定混胺中两组分的电位滴定终点 |
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| 引用本文： | 王菊香,申刚.两点法确定混胺中两组分的电位滴定终点[J].理化检验(化学分册),2006,42(11):903-905,907. |
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| 作者姓名： | 王菊香 申刚 |
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| 作者单位： | 海军航空工程学院,飞行器工程系,烟台,264001;海军航空工程学院,飞行器工程系,烟台,264001 |
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| 摘 要： | 利用两点法确定了液体推进剂混胺中两组分——三乙胺乖二甲苯胺的电位滴定终点，并与常规的弧切作图法乖二阶微分法确定的滴定终点进行了配对t检验，显示结果之间不存在显著差异，或可予校正。两点法简单快速，结果可靠，特别适宜于大量样品的快速分析。
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| 关 键 词： | 电位滴定法 滴定终点 两点法 两组分混胺 |
| 文章编号： | 1001-4020（2006）11-0903-03 |
| 收稿时间： | 2005-05-15 |
| 修稿时间： | 2005-05-15 |
DETERMINATION OF THE END-POINT OF POTENTIOMETRIC TITRATION OF BINARY COMPONENTAL-AMINE MIXTURE BY THE TWO-POINT METHOD |
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| WANG Ju-xiang,SHEN Gang.DETERMINATION OF THE END-POINT OF POTENTIOMETRIC TITRATION OF BINARY COMPONENTAL-AMINE MIXTURE BY THE TWO-POINT METHOD[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2006,42(11):903-905,907. |
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| Authors: | WANG Ju-xiang SHEN Gang |
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| Institution: | Dept. of Aerocraft Engineering, Institute of Naval Aeronautical Engineering, Yantai 264001, China |
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| Abstract: | The two-piont method was applied to the determination of end-point of potentiometric titration of samples of mixture containing trimetryl amine and xylidine, which is used as liquid propellant. The results of determination obtained by this method were compared with the data obtained by the arc tangent graphical method and the 2nd derivation method with t-test, showing that significant differences were not found among the data or can be corrected. It was proved that the two-point method improved the potentiometric titration in easiness and rapidity in operation, in accuracy and precision and in feasibility for analysis of large number of samples. |
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| Keywords: | Potentiometric titration End point Two-piont method Binary componental amine mixture |
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