用^233Pa做示踪剂,分别使用ABS树脂、有机玻璃、聚乙烯和普通玻璃试管做吸附材料,研究了在不同浓度的HCL溶液中哪Pa在试管壁上的吸附。结果显示,^233Pa在试管壁上的吸附随盐酸浓度的增加而减少。当HCL浓度≥0.5mol/L时,同ABS树脂和有机玻璃比较,^233Pa在玻璃试管壁上的吸附最少。当HCL浓度≤0.25mol/L时,^233Pa在玻璃试管壁上的吸附反而比在ABS树脂和有机玻璃试管壁上的大。若^233Pa的HCL溶液在聚乙烯、ABS树脂和玻璃试管中存放较长的时间(24h),聚乙烯试管壁对^233Pa的吸附量最少。
Sorption of protactinium (V)on the test tubes walls was investigated from HCl aqueous solutions using ^233Pa as tracer and using ABS resin, organic glass, polyethylene and general glass as sorption materials, respectively. The results reveal that sorption of ^233pa on the test tubes walls is decreased with increasing HCl concentration, When HCl concentration is ≥0. 5 mol/L,adsorption of ^233pa on the walls of the glass test tubes is the smallest comparing with ABS resin and organic glass test tubes. When HC1 concentration is ≤0. 25 mol/L,contrary,adsorption of ^233pa on the glass test tube walls is larger than than on ABS resin and organic glass tuble walls. If ^233 Pa sorption on polyethylene tubes walls from HCl solutions is least.