Obata Honoka, Minegishi Katsuyuki, Nagatsu Kotaro, Zhang Ming-Rong, Shinohara Atsushi
Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka, 560-0043, Japan; Department of Advanced Nuclear Medicine Sciences, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1 Anagawa, Inage, Chiba, 263-8555, Japan.
Department of Advanced Nuclear Medicine Sciences, National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology (QST), 4-9-1 Anagawa, Inage, Chiba, 263-8555, Japan.
Appl Radiat Isot. 2019 Jul;149:31-37. doi: 10.1016/j.apradiso.2019.04.007. Epub 2019 Apr 11.
We have developed a new method for producing Pt from an iridium target. Alkali fusion of iridium was successfully performed using a vertical beam irradiation method and a mixed target of Ir and NaO, which resulted in easy dissolution of the irradiated iridium target. A trace amount of PtCl was isolated from bulk IrCl by solvent extraction and anion exchange chromatography. The production yield of Pt was 7.1 ± 0.4 (MBq/μA h, EOB) by proton irradiation at 30 MeV. The radioplatinum product (n.c.a.) was prepared at a radiochemical purity of 97% for PtCl, and 95% for PtCl, respectively.
我们开发了一种从铱靶生产铂的新方法。使用垂直束辐照法和铱与氧化钠的混合靶成功地进行了铱的碱熔，这使得辐照后的铱靶易于溶解。通过溶剂萃取和阴离子交换色谱从大量的氯化铱中分离出痕量的氯化铂。在30 MeV下进行质子辐照时，铂的产率为7.1±0.4（MBq/μA h，EOB）。制备的放射性铂产品（无载体）中，氯化铂的放射化学纯度分别为97%和95%。
