β-环糊精交联聚合物包结双硫腙络合物树脂对Au(Ⅲ)的吸附性能  

β-cyclodextrins cross-link polymer bag double dithizone complex resin for Au(Ⅲ) adsorption performance

作　　者：刘志江[1] 金文英[2] 党明岩[1] 张欣[1] 

机构地区：[1]沈阳理工大学环境与化学工程学院,沈阳110159 [2]桂林理工大学化学与生物工程学院,桂林541004

出　　处：《分析试验室》2011年第6期15-18,共4页Chinese Journal of Analysis Laboratory

基　　金：国家自然科学基金项目(51004072)资助

摘　　要：以环氧氯丙烷为交联剂合成β-环糊精聚合物树脂被双硫腙包结的产物能与Au(Ⅲ)形成稳定的吸附络合物,并以此做吸附剂,结合原子吸收光谱法考察其对水体中痕量Au(Ⅲ)的吸附性能。研究了吸附、洗脱条件及富集倍数,提出了一种富集测定痕量Au(Ⅲ)的新方法。合成树脂对Au(Ⅲ)有良好的吸附性能,常温下静态饱和吸附量为30.98 mg/g。硫脲-盐酸溶液进行静态洗脱,洗脱率达98%,富集倍数20倍。The stabLe adsorption compLex is synthesized by Au（Ⅲ） and a incLusion compLex of β-cycLodextrin resin and dithizone with epichLorohydrin as crossLinking agent.The adsorption compLex was used as an adsorbent to study its adsorption performance on trace Au（Ⅲ） in water by atomic absorption spectrophotometry.The experiment researched adsorption and eLution conditions and enrichment factor,and proposed a new method of trace Au（Ⅲ） enrichment and measurement.The resuLts show that the synthetic resin has good absorption performance for Au（Ⅲ） and static adsorption capacity of 30.98 mg/g.Thiourea-hydrochLoric acid was used for static eLution,and the eLution ratio reached 98% and concentration factor was 20 times.

关 键 词：Β-环糊精交联聚合物 双硫腙包结 树脂 原子吸收光谱法 金 吸附 

分 类 号：O652.6[理学—分析化学]