^(131)I在镀钯银丝上的吸附工艺研究  

A novel approach for adsorption of iodine-131 on silver wire

作　　者：何佳恒[1] 姜林[1] 钟文彬[1] 马宗平[1] 王静[1] 李兴亮[1] 蹇源[1] 

机构地区：[1]中国工程物理研究院核物理与化学研究所,绵阳621900

出　　处：《核技术》2010年第8期588-591,共4页Nuclear Techniques

基　　金：中国工程物理研究院军民两用基金(200909)资助;中国工程物理研究院发展基金(2009B0301028)资助

摘　　要：碘-125吸附在银丝上作为源芯,封装在肽管中,即为种子源,目前广泛用于治疗眼内和脑内的肿瘤,并用于前列腺癌的永久性植入治疗。本工作用131I替代125I考察了不同浓度、不同体积的PdCl2对银丝进行处理后对吸附的影响;探索了吸附液体积、温度、时间以及载体量等条件的变化对吸附的影响,确定了碘在银丝上的吸附工艺,吸附率达90%以上。By fixing 125I onto a silver wire and sealing it into titanium capsules, a radioactive seed source can be made for brachytherapy of intraocular and brain tumors, or as permanent implants for prostate cancer. In this paper, aimed at optimizing procedures to prepare the 125I seeds, 131I was used as a substitution of 125I to study the iodine adsorption onto silver wires coated with palladium. Effects of the carrier concentration, adsorption time, temperature and palladium-coating of the silver wires on the iodine adsorption were investigated. With the optimized procedures of iodine adsorption on the Pd-coated silver wires, the adsorbing efficiency can reach 90%.

关 键 词：^131I近距离治疗 种子源 吸附 银丝镀钯 

分 类 号：O613[理学—无机化学] R817[理学—化学]