ICP-AES研究负载奎宁树脂对金、铂、钯的吸附  

Study on Adsorption Behavior of Au、Pd、Pt by Quinine Loded Resin With ICP AES

作　　者：刘怀志[1] 江祖成[1] 汪福意 彭天右[1] 

机构地区：[1]武汉大学化学与环境科学学院,武汉430072

出　　处：《武汉大学学报（自然科学版）》1999年第4期395-398,共4页Journal of Wuhan University(Natural Science Edition)

基　　金：湖北省自然科学基金

摘　　要：利用奎宁能与贵金属的络阴离子发生络合作用的性质，将其负载到阳离子交换树脂上，制得奎宁负载树脂（ Ｑ Ｃ Ｒ） ．以 Ｉ Ｃ Ｐ Ａ Ｅ Ｓ为检测手段，详细考察了吸附材料在静态吸附条件下对贵金属络阴离子的富集分离性能．结果表明， 在盐酸（０．１～３．０ ｍ ｏｌ／ Ｌ） 溶液中，负载奎宁树脂的化学稳定性好．以０．１ ｍ ｏｌ／ Ｌ的 Ｈ Ｃｌ为吸附介质，贵金属 Ａｕ、 Ｐｄ、 Ｐｔ可实现定量分离富集，吸附于奎宁树脂上的贵金属可用０．１ ｍ ｏｌ／ Ｌ 的 Ｈ Ｃｌ－ ２ ｇ／ Ｌ 硫脲混合淋洗液完全解脱．方法用于抗癌药物及催化剂中 Ｐｔ、 Ｐｄ 的富集分离与测定。A new adsorbent QCR was prepared with quinine impregnated on cation exchange resin. It was found that QCR was stable in the solution of HCl(0.1～3.0 mol/L). Separation and preconcentration of noble metal ions (Au、Pd、Pt) by QCR have been studied by Inductively Coupled Plasma Atomic Emission Spectronetry (ICP AES). More than 93% of noble metal ions were adsorbed by QCR in 0.1mol/L HCl; and the analyte could be eluted quantatively by using 2 g/L thiourea -0.1 mol/L HCl as the eluant. The adsorption selectivity to Au、Pd、Pt is good at the existence of some non noble ions. This method has been applied to the analysis of catalysts and anticancer drugs with satisfactory results.

关 键 词：ICP-AES 奎宁 吸附材料 金 钯 铂 分离 

分 类 号：O614.123[理学—无机化学] O657.31[理学—化学]