CAJ | 학술논문

以矱0.5 mm ×3.0 mm碳棒为载体，氯化钯为前体，103 Pd为放射性示踪剂，水合肼为还原剂，研究了化学沉积103 Pd工艺。结果表明，化学沉积103 Pd的优化条件为：2 g/L PdCl2、65 g/L Na2 EDT A、700 mL/L 25％ N H3· H2 O、100 mL/L 5％ H4 N2· H2 O ，pH＝10，时间90 min ，温度50℃。化学沉积103 Pd溶液稳定性好，反应易进行；有95％的103 Pd沉积到载体棒上，碳棒对103 Pd的吸收仅约为12％，103 Pd利用率高；沉积层呈灰白色，表面平整；化学沉积103 Pd批内均匀性好，重复性好。化学沉积103 Pd技术可用于制备103 Pd粒子和新型103 Pd-125 I复合粒子。
이확0.5 mm ×3.0 mm탄봉위재체，록화파위전체，103 Pd위방사성시종제，수합정위환원제，연구료화학침적103 Pd공예。결과표명，화학침적103 Pd적우화조건위：2 g/L PdCl2、65 g/L Na2 EDT A、700 mL/L 25％ N H3· H2 O、100 mL/L 5％ H4 N2· H2 O ，pH＝10，시간90 min ，온도50℃。화학침적103 Pd용액은정성호，반응역진행；유95％적103 Pd침적도재체봉상，탄봉대103 Pd적흡수부약위12％，103 Pd이용솔고；침적층정회백색，표면평정；화학침적103 Pd비내균균성호，중복성호。화학침적103 Pd기술가용우제비103 Pd입자화신형103 Pd-125 I복합입자。
Using ?0.5 mm × 3.0 mm carbon rod as substrate ,PdCl2 as precursor ,103 Pd as radioactive tracer ,and hydrazine as reductant ,the process of electroless 103 Pd-plating was studied .The results show that the optimum conditions of electroless 103 Pd-plating are2g/LPdCl2 ,65g/LNa2EDTA ,700mL/L25% NH3·H2O,100mL/L5% H4N2·H2O, pH=10 ,t=90 min ,and the temperature of 50 ℃ .The solution has good stability .The electroless 103 Pd-plating is easy to carry out .About 95% 103 Pd is deposited and 12%activity is shielded by the carbon rod . T he utilization rate of 103 Pd in the chemical adsorption reaction is high .103 Pd-coating is grey and smooth .103 Pd-coating on each substrate of carbon rod is uniform , and the reaction can be repeated well . The technology of electroless 103 Pd-plating can be applied in preparation of 103 Pd seed and 103Pd-125I hybrid seed which is a new member of brachytherapy .