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铜基铂在 pH≤6.2的多种酸性介质中,对 I~- 都有很高的吸附效率(>99％),吸附速度快、选择性高。每立方厘米吸附剂的吸附容量约为0.7mg碘。淋洗收率取决于吸附碘量及淋洗碱液浓度,在 1.5cm~3的柱上,对>80μg的碘,用 10—15个柱体积的 0.3NNaOH淋洗,可接近定量回收。产品液放化纯度≥99.9％;化学纯度也高。铜基铂耐辐照性能良好,可重复使用。适用于多居里级放射性碘的制备等多种用途。纯铜粉对I~-的吸附和解吸规律与铜基铂相同,唯吸附容量、抗干扰等性能较差。
Copper-based platinum in pH≤6.2 in a variety of acidic medium, I ~ - have a high adsorption efficiency (> 99%), adsorption speed, high selectivity. The adsorption capacity per cubic centimeter of adsorbent is about 0.7 mg of iodine. The leaching yield depends on the amount of adsorbed iodine and the concentration of leaching lye. On a 1.5 cm ~ 3 column,> 80 μg of iodine was eluted with 0.3N NaOH in a column volume of 10-15, which allowed for approximate quantitative recovery. Product liquid radiochemical purity ≥ 99.9%; chemical purity is also high. Copper-based platinum resistance to radiation good, can be reused. For multi-curricular radioactive iodine preparation and other purposes. Pure copper powder I ~ - adsorption and desorption of the same rules and copper-based platinum, only the adsorption capacity, anti-interference performance is poor.