4l0哌啶树脂分离富集－原子吸收测定化探样品中痕量镉  

Piperidine Resin Adsorption and the AAS Determination of Cadmium in GeologicaI Samples

作　　者：李玉珍 陈德勋 

机构地区：[1]地矿部岩矿测试技术研究所

出　　处：《岩矿测试》1995年第4期285-287,共3页Rock and Mineral Analysis

基　　金：地矿部部控课题之一

摘　　要：研究了４１０哌啶树脂对Ｃｄ的吸附行为，在２％～２０％ＨＣＩ介质中［ＣｄＣｌ＿３］￣－被树脂吸附，采用４％～３０／ＨＮＯ＿３溶液可以解脱Ｃｄ，回收率在９６％以上。测定了Ｃｄ在该树脂上的分配系数为５４９０，对含Ｃｄ０．０６７μｇ／ｇ的标样ＧＳＲ－３平行测定６次，相对标准偏差为９．５％。方法用于化探样品中０．０Ｘ×１０￣－６级Ｃｄ的测定，结果满意。he process of the adsorption of Cd on piperidine resin 4l0 was studied,and trace amounts of Cd can be quantitatively separated from 2%～20%HCI.Cd is eluted with 4%～30%HNO_3 and determined by AAS,the recovery being > 96%。The distribution coefficient has been determined to be 5 490.The relative standard deviation for a sample(GSR-3)containing 0.067 μg/g Cd is 9.5%(n=6).The method has been used to determine 0.0X μg/g of Cd in geological samples with satisfactory results.

关 键 词：哌啶树脂 分离富集 镉 地球化学勘探 样品 

分 类 号：P632.1[天文地球—地质矿产勘探] P575.9[天文地球—地质学]