| 恒速滴定-固定ΔpH法直接测定α-萘乙酸钾的研究 |
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| 引用本文： | 高向阳,王翠. 恒速滴定-固定ΔpH法直接测定α-萘乙酸钾的研究[J]. 分析化学, 1995, 0(1) |
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| 作者姓名： | 高向阳 王翠 |
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| 作者单位： | 河南农业大学基础科学技术学院 郑州450002(高向阳)，河南省职业病防治所 郑州450052(王翠) |
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| 摘 要： | 用微量滴定管控制恒速滴定,用记录仪描绘滴定曲线,在固定的pH值区间测量有关信号,用盐酸溶液直接滴定α-萘乙酸钾.本法不需要准确知道滴定剂所消耗的物质的量,数分钟即可绘出一条滴定曲线,加标回收率为98.8％～101.4％,相对标准偏差为1.6％(n=11),适用于工业品及试剂α-萘乙酸钾的常规分析。
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| 关 键 词： | 恒速滴定 α-萘乙酸钾 |
Direct Determination of Potassium a-Naphthylacetate by Fixed ApH With Constant-rate Titration |
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| Gao Xiangyang. Direct Determination of Potassium a-Naphthylacetate by Fixed ApH With Constant-rate Titration[J]. Chinese Journal of Analytical Chemistry, 1995, 0(1) |
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| Authors: | Gao Xiangyang |
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| Abstract: | The direct determination of potassium o-naphthylacetate by constant-rate titration with microburette is studied. The detection signal has been drawn and measured by fixed ApH method on the recording apparatus with constant-rate. It is not necessary that the volume of titrant has been known accurately. The relative standard deviation is 1. 6%(n=11). The recovery is 98. 8%-101. 4% for the determination of potassium a-naphthylacetate in industrial sample by standard addition method. |
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