X-I电子材料、化探样品和海水中痕量银的测定

Determination on trace of silver in X-I electronic material, the sample of chemical prospect and the,sea water

本文的测定法是以原子吸收分光光度法为基础,分离是以银离子—硫氰化物—罗丹明B体系浮选为手段,对样品材料的处理方法作了深入、细致的摸索和探讨,建立起一套较完整的分析测定法。实验证明,本分析法是切实可行的。本文作了化探样品和X-I电子材料中微量银及海水中痕量银的测定,结果令人满意。在测定前,选择了银离子—硫氰化物—罗丹明B体系浮选的最佳条件,浮选回收率为100％,富集率达100倍,奠定了银离子—硫氰化物—罗丹明B体系浮选法的基础。本分析法简单、快速、灵敏且准确,具有一定广度的实用价值。

The measuring method of this paper is based upon atomic absorption spectrop-hometry, and the separation by the way of floation for silver ion-sulfocyanate-Rho-damine B system. This paper inquires into penetratively solution method of the sample, and builds up an integrated measuring method of the analysis. It is proved iexperi-mentlly that this analytical method is practical and effective. This paper determinates trace of silver in X-I electronic material, the sample of Chemical prospect and sea water. The result is satisfactory. We have selected the conditions of best floation for Ag-SCN-RB system before we determinate silver. The recovery is 100%, and concentrated ratio is a 100 flod. We build up successfully the method of the floation for Ag-CN -RB system. This method is simple, quick, sensitive and accurate. There must be practical value in the analytical method.