摘要
本文主要研究了在熔融盐NH_4NO_3—LiNO_3—NH_4Cl中,熔融温度为125℃±0.5℃时应用交流示波研究无机物和有机物等交流示波极谱的特性。 实验(?)一步扩充了文献〔1〕所报导的研完工作,完成了被测物的Q值、最低检出浓度、定性分布图的绘制和熔融盐温度的选择。预示了在此熔融盐中定量分析的可能性,对Pb进行了定量测定。 实验采用Kaliskova电极为极化电极。实验证明在此熔融盐中使用它进行定量分析具有较高的灵敏度和较好的重现性,取得了较满意的结果。
This paper deals with applying alternating current oscillopolarogra-phy,at temperatures of 130±5℃,to the study of the oscillopolarographic che-racteristics of organic and inorganic compounds in molter NH4NO3-LiNO3-NH4C1.
The present paper expands the work reported in the literature [1], giwing ionic Q values of depolarizers and their minumum concentrations of deteption pD, a diagram of the qualitative distribution of various inorganic ions, and the appropriate compounding, ratio of the molten salts,suggesting the practicability of simultaneous quantitative analysis of compounds in molten salts The paper gives an example of the application of the method in quantitative analysis of Pb2+ Kaliskova electrode was u$ed as the polarization electrode. Experimental results show that, in molten salts, use of Kaliskov electrode in quantitve analysis offers higher sen-sitivity and reproducibility, achieving bettes results.
出处
《黑龙江大学自然科学学报》
CAS
1989年第1期24-28,54,共6页
Journal of Natural Science of Heilongjiang University
关键词
熔融盐
交流
示波极谱
硝酸铵
alternating current osclllopolarography, molten salt
