FIA法测定大孔型阴树脂交换性能的应用研究

Research on the application of FIA spectrophotometry to the determination of the exchange capacity of macroporous anion resin

用开发的阴树脂性能FIA分光光度测定法,对不同厂家的大孔型阴树脂、同厂家的大孔型和凝胶型阴树脂的交换性能、均粒与非均粒树脂的交换性能进行了应用研究。结果表明,FIA法与国标法的测定结果有很好的相关性(相关系数r=0.990),并具有试剂耗量少、操作简单、自动化程度高等优点,能一次测定给出树脂的工作交换容量、平衡交换容量、全交换容量、交换速率、利用率等5个参数,可用于对其他各种阴树脂交换性能的理论研究。

The application research of the exchange capacity of macroporo us and gel-typed anion resin,and the exchange capacity of resins with uniform a nd ununiform diameters have been studied by using the FIA spectrophotometry,whic h was developed. This method has good relativity with the result of GB methods( the correlation factor r = 0.990).Its reagent consumption is low, the operatio n is simple, and the automatization level is high. The working exchange capacity , equilibrium exchange capacity, total exchange capacity,exchange speed and uti lity rate can be determined at one time. It can also be used for the theoretical research of the exchange performance of many other anion resins.