论文部分内容阅读
本文研究了硫酸－二苯羟乙酰－氯酸钾－甜菜碱体系中钨的极谱催化波的适宜条件．峰电位为 －１．１Ｖ（对银电极）．检出根限为３．８×１０－９Ｍ．并应用于测定海水中痕迹量的钨．测定了钨与二 苯羟乙酸络合物的组成，结果表明Ｗ：ＨＡ＝１：１．络合物的稳定常数β＝２．２１×１０４．
In this paper, the suitable conditions for the polarographic catalytic wave of tungsten in sulfuric acid-diphenyloxyl-potassium chlorate-betaine system were studied. The peak potential is -1.1V (for silver electrodes). The root detection limit is 3.8 × 10-9M. And used in the determination of trace amounts of tungsten in seawater. The composition of the complex of tungsten and diphenylethylacetate was determined. The results showed that W: HA = 1: 1. The stability constant of the complex β = 2.21 × 104.