摘要
以N_(263)浸渍在DA_(201)大孔吸附树脂上制得了N_(263)浸渍树脂,测定了静态时树脂Pb(Ⅱ)的吸附容量。通过柱层析法,试验了酸度,流速和干扰离子等因素对N_(263)浸渍树脂吸附和洗脱Pb的影响。建立了N_(263)浸渍树脂分离─富集后衔接原子吸收和比色法测定Pb(Ⅱ)的方法,测定了地质样品中Pb(Ⅱ),测试结果理想。
The paper advanced a new method to determine Pb(Ⅱ)in geological samples through determining the absorbtion capacity of DA_(201) resin Pb(Ⅱ)which nacerated with N_(263),testing the interfering factors,which interfered the absorbing and washing-out of Pb(Ⅱ),such as acidity,current velocity and interfere ions,by columnarlaying analyse method,then seperat-ing and concentrating Pb(Ⅱ)absorbed in macerated resin with N_(263),at last determining Pb(Ⅱ)by colorimetry and atomic absorption method, which the results are satisfactory.