In this work, a simple and efficient method for producing high radionuclidic purity ¹¹¹In from an enriched ¹¹²Cd target was developed. The enriched ¹¹²Cd metal target formed by cyanide-free electroplating was bombarded with protons of 21 MeV in a CS-30 cyclotron. Then, we explored a purification scheme using CL-P204 cation exchange resin wherein 98% of the ¹¹¹In in the bombarded target could be extracted in less than 1 h. The purified ¹¹¹In in the form of [¹¹¹In]In-chloride had a high radionuclidic purity (99.9%) and a low impurity concentration (<1.2 ppm). The yield of ¹¹¹In via the reaction of ¹¹²Cd (p, 2n) ¹¹¹In was measured to be 222 ± 5 MBq/μA∙h. In addition, a chemical procedure for collecting the unreacted ¹¹²Cd at a recovery rate of 96.6% was explored.

在这项工作中，开发了一种从富集的¹¹² Cd 靶中生产高放射性核素纯度¹¹¹ In的简单有效的方法。通过无氰电镀形成的富集¹¹² Cd 金属靶在 CS-30 回旋加速器中用 21 MeV 的质子轰击。然后，我们探索了使用 CL-P204 阳离子交换树脂的纯化方案，其中可以在不到 1 小时的时间内提取出轰击目标中98% 的¹¹¹ In。[ ¹¹¹ In] In-氯化物形式的纯化¹¹¹ In具有高放射性核素纯度（99.9%）和低杂质浓度（<1.2 ppm）。¹¹² Cd (p, 2n) ¹¹¹反应生成¹¹¹ InIn 测量值为 222 ± 5 MBq/μA∙h。此外，还探索了一种以 96.6% 的回收率收集未反应的¹¹² Cd的化学程序。