摘要
本文以季铵盐N_(263)-附载在硅球上作为固定相,用原子吸收法研究了N_(263)-HCl体系分离富集金的性能.静态试验了酸度对吸附金的影响,测定了N_(263)-SiO_2的吸附容量、与金的反应速率常数k值为7.3×10^(-4)sec^(-1),其等温吸附线符合Freundlich经验等温吸附方程:Q=KC^(1/n).在动态法试验的基础上,测定了金废水和金样的金含量,回收率测试结果满意.
In this paper, the extraction chromatography for seperation and preconcentration of gold(Ⅲ) with quaternary ammonium salt N203-HC1 system was studied by means of atomic absorption spectroscopy. The influence of acidity and non-noble matels Cu, Co, Fe, Ni were investigated by static method. The absorption capacity of N203-silica for gold(Ⅲ) was determined and the rate constant k of the reaction with respect to gold (Ⅲ) is 7.3×10-4sec-1. Its isothermal absorption curve is conformed to Freundlich equation Q = KC1/n. The content of gold in waste water and gold ores were determined by this method and the satisfactory analytical results were obtained.
出处
《杭州大学学报（自然科学版）》
CSCD
1990年第1期51-57,共7页
Journal of Hangzhou University Natural Science Edition
关键词
金
分离
富集
季铵盐
N263
extraction chromatography
seperation
and preconcentration
gold
quarternary ammonium salt N263
