高速离子交换色谱法分离重金属离子及铜和锌的测定

HSIEC SEPARATION OF HEAVY METAL AND DETERMINATION OF COPPER AND ZINC

本文使用国产SY-202高速离子交换色谱仪(库仑检测器)以及国产YSG-SO_(3)Na型阳离子交换树脂研究了铜、锌、镍、钴、镉、铅和锰等七种二价离子在酒石酸盐、乳酸盐及柠檬酸盐体系洗脱液中的分离情况,考察了洗脱液及其流速对保留时间和柱效的影响以及不同离子和不同进样量对电解效率的影响。测定了黄铜和废水样品中的铜和锌。

A flow coulometric detector was applied to a study of the separation of heavy metal ions by cation-exchange chromatography using tartrate,lactate and citrate as the eluents.The separation of a six-component mixture of metal ions(copper,zinc,nickel,cobalt,cadmium,and manganese)was completed within one hour under suitable conditions.The effects of composition and flow rate of the eluents on the retention time and column efficiency was investigated.The relation of plate height and flow rate of the eluents was agreeable to the Snyder equation.It was observed that the electrolytic efficiency varied with the kind of ions and the size of the sample.The method was applied to the determinations of copper and zinc in a brass and waste water.A flow coulometric detector was applied to a study of the separation of heavy metal ions by cation-exchange chromatography using tartrate,lactate and citrate as the eluents.The separation of a six-component mixture of metal ions(copper,zinc,nickel,cobalt,cadmium,and manganese)was completed within one hour under suitable conditions.The effects of composition and flow rate of the eluents on the retention time and column efficiency was investigated.The relation of plate height and flow rate of the eluents was agreeable to the Snyder equation.It was observed that the electrolytic efficiency varied with the kind of ions and the size of the sample.The method was applied to the determinations of copper and zinc in a brass and waste water.