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~(199)Tl比~(201)Tl吸附剂量减少三分之一,探测效率改进两倍多。本文用二苯并-18-冠-6甲醛聚合物(PDB-18C6)从金靶中分离~(199)Tl。着重研究了粒度分别为80—90和140—200目时的PDB-18C6在不同溶剂中及冠醚树脂在盐酸溶液中对Tl(Ⅰ)、Au(Ⅲ)、Cu(Ⅱ)的络合作用;冠醚树脂的用量对Tl(Ⅰ)、Au(Ⅲ)、Cu(Ⅱ)络合作用的影响;AU(Ⅲ)离子存在下冠醚树脂对络合Tl(Ⅰ)离子的影响;淋洗剂浓度与淋洗效率的关系;冠醚树脂上Tl(Ⅰ)、Au(Ⅲ)、Cu(Ⅱ)的分离;Tl(Ⅰ)、Au(Ⅲ)的回收效率;冠醚树脂的再生;从α粒子能量为25-27MeV辐照的金靶中分离~(199)Tl等。
~ (199) Tl than ~ (201) Tl adsorbent dose reduced by one third, detection efficiency improved more than twice. In this paper, ~ (199) Tl was isolated from a gold target using dibenzo-18-crown-6 formaldehyde polymer (PDB-18C6). The complexation of TBA (Ⅰ), Au (Ⅲ) and Cu (Ⅱ) by PDB-18C6 with different particle size of 80-90 and 140-200 mesh in crown ether resin in hydrochloric acid solution was studied emphatically. ; The effect of crown ether resin on the complexation of Tl (Ⅰ), Au (Ⅲ) and Cu (Ⅱ); the effect of crown ether resin on the complexation of Tl (Ⅰ) ion in the presence of AU (Ⅲ) The relationship between the concentration and the elution efficiency; the separation of Tl (Ⅰ), Au (Ⅲ) and Cu (Ⅱ) on crown ether resin; the recovery efficiency of Tl (Ⅰ) and Au Alpha particle energy of 25-27MeV irradiated target separation ~ (199) Tl and so on.