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RADIOCHIMICA ACTA · 2023 ·Vol. 111 ·期 12 ·909-918 · IF 1.8

Efficient extraction of 68Ge from irradiated Ga–Ni alloy via a novel organic-solvent-free separation procedure

Lingting Xia,Han Wu,Jing Gao,Tianzhen Ye,Long Qiu,Feize Li,Tu Lan,Jijun Yang,Jiali Liao,Ning Liu,Yuanyou Yang

In this work, a gallium–nickel alloy target with a weight percentage ratio of 7:3 was successfully prepared on Cu substrate in a chloride system at room temperature. A novel organic-solvent-free separation procedure based on two columns for extracting 68 Ge from irradiated Ga–Ni alloy target with high radionuclidic purity (99.99 %) was developed. By this separation procedure, the recovery of 68 Ge is 95 ± 5 % and the yield of 68 Ge via the nuclear reaction nat Ga(p, x n) 68 Ge was measured to be 0.27 ± 0.02 MBq/μA h.

研究领域: 核医学 · 放射化学

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APPLIED RADIATION AND ISOTOPES · 2025 · IF 1.8

Tartaric Acid assisted synthesis of TiO2 used as adsorbent of 68Ge/68Ga generators

Tao Gao,Xiang Gong,Jiali Liu,Sheng Hu,Wei Yu,Yuhong Liu,Jiwei Liang

A method for regulating the rutile and anatase ratio of TiO 2 products by adding tartaric acid is reported. By this method, TiO 2 with a specific anatase/rutile ratio exhibited excellent selective adsorption performance of 68 Ge and 68 Ga. Experiment shows that Tartaric acid assist synthesized TiO 2 enabled strong 68 Ge adsorption but negligible adsorption of 68 Ga. Meanwhile, the TiO 2 adsorption exhibited significant acid resistance, with minimal Ti 4+ leaching. In addition, the 68 Ga elution efficiency and 68 Ge breakthrough of radioactivity experiments demonstrated that synthesized TiO 2 achieved an initial 68 Ga elution efficiency of 75%, which remained about 65% after 200 elution cycles. Furthermore, over the four-month observation period, the 68 Ge breakthrough of the TiO 2 adsorbent did not exhibit a significant increase, remaining below 1×10 -5 . Generally, the synthesized TiO 2 adsorbent exhibits potential as a 68 Ge/ 68 Ga generator column adsorbent with outstanding acid-resistant, radiation-resistant, efficient 68 Ga elution and low 68 Ge breakthrough for long-term.

CAS / MDL: 7439-89-6 7440-48-4 7440-50-8 7440-66-6

研究领域: 材料科学 · 核化学 · 吸附技术 · 放射性药物

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Efficient extraction of 68Ge from irradiated Ga–Ni alloy via a novel organic-solvent-free separation procedure

Tartaric Acid assisted synthesis of TiO2 used as adsorbent of 68Ge/68Ga generators