球形亚铁氰化钴钾-硅胶无机离子交换剂的制备及其用于137Cs-137mBa发生器的研究

doi:10.7538/tws.2014.27.04.0203

同位素 ›› 2014, Vol. 27 ›› Issue (4): 203-208.DOI: 10.7538/tws.2014.27.04.0203

球形亚铁氰化钴钾-硅胶无机离子交换剂的制备及其用于¹³⁷Cs-^137mBa发生器的研究

李锦富;阳国桂;罗联哲;高媛

原子高科股份有限公司，北京102413

出版日期:2014-11-20 发布日期:2014-12-22

Preparation of Spherical Potassium Cobalt Hexacyanofe Rate(Ⅱ) Inorganic Ion-exchanger Supported on Silica Gel for ¹³⁷Cs-^137mBa Radioisotope Generator

LI Jin-fu;YANG Guo-gui;LUO Lian-zhe;GAO Yuan

Atom High Tech Co. LTD., Beijing 102413, China

Online:2014-11-20 Published:2014-12-22

摘要/Abstract

摘要：

利用¹³⁷Cs-^137mBa的放射性级联衰变关系和¹³⁷Cs、^137mBa之间不同的化学性质，可以制备¹³⁷Cs-^137mBa核素发生器。本研究制备了球形亚铁氰化钴钾硅胶无机离子吸附材料，其对Cs⁺的静态吸附容量为0.311 mmol/g，吸附平衡常数为2.2×10⁴。用上述材料制备了活度为1.85×10⁹Bq(50 mCi)的用于工业示踪的^137mBa同位素发生器，淋洗效率大于50%，Cs⁺的漏穿率为10^-7/mL量级，使用寿命大于1年。该发生器性能稳定，使用寿命长。

关键词: 亚铁氰化钴钾, ¹³⁷Cs, ^137mBa, 同位素发生器

Abstract:

The mother-daughter relation and the different chemical properties between ¹³⁷Cs and ^137mBa makes it possible to prepare ¹³⁷Cs-^137mBa generator to obtain ^137mBa nuclides. The potassium cobalt hexacyanoferrate(Ⅱ) inorganic ion-exchanger supported on silica gel was prepared, its Cs⁺ static adsorption capacity was 0.311 mmol/g, and its adsorption equilibrium constant was 2.2×10⁴. The 1.85×10⁹ Bq (50 mCi) miniature generator was prepared, The elution efficiency was greater than 50%. The breakthrough of cesium was 10^-7 per milliliter of eluent. The service life was more than 1 year.

Key words: potassium cobalt hexacyanoferrate, Cesium-137, Barium-137m, radioisotope generator

李锦富;阳国桂;罗联哲;高媛. 球形亚铁氰化钴钾-硅胶无机离子交换剂的制备及其用于¹³⁷Cs-^137mBa发生器的研究[J]. 同位素, 2014, 27(4): 203-208.

LI Jin-fu;YANG Guo-gui;LUO Lian-zhe;GAO Yuan. Preparation of Spherical Potassium Cobalt Hexacyanofe Rate(Ⅱ) Inorganic Ion-exchanger Supported on Silica Gel for ¹³⁷Cs-^137mBa Radioisotope Generator[J]. Journal of Isotopes, 2014, 27(4): 203-208.

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球形亚铁氰化钴钾-硅胶无机离子交换剂的制备及其用于¹³⁷Cs-^137mBa发生器的研究

Preparation of Spherical Potassium Cobalt Hexacyanofe Rate(Ⅱ) Inorganic Ion-exchanger Supported on Silica Gel for ¹³⁷Cs-^137mBa Radioisotope Generator

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