Molybdenum Adsorption and Desorption Properties of Alumina with Different Surface Structures for 99Mo/99 mTc Generators

Transactions-Materials Research Society of Japan Pub Date : 2018-04-01 DOI:10.14723/TMRSJ.43.75

Yoshitaka Suzuki, Tomoya Kitagawa, Y. Namekawa, M. Matsukura, K. Nishikata, H. Mimura, K. Tsuchiya

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引用次数: 6

Abstract

The production of 99 Mo via a (n, γ ) reaction is a simple and easy method and is advantageous from the viewpoints of nuclear proliferation resistance and waste management. However, the production of 99 m Tc solutions with heavy levels of radioactivity is difficult because the specific radioactivity of 99 Mo produced via this method is extremely low. Thus, it is necessary to develop a novel adsorbent with high Mo-adsorption efficiency. In this study, alumina (Al 2 O 3 ), which is often used in medical 99 Mo/ 99 m Tc generators, was used as the Mo adsorbent. Al 2 O 3 specimens were prepared with three types of starting powders and sintered at different temperatures; in addition, their Mo adsorption and desorption properties were evaluated. The results indicated that the Mo-adsorption properties are influenced by the crystal structure and the specific surface of the Al 2 O 3 . In addition, the basic chemical properties of the solution eluted from each developed Al 2 O 3 specimen were within the limits given by the guidelines.

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不同表面结构氧化铝对99Mo/ 99mtc发生器钼的吸附和解吸性能

通过a (n， γ)反应生产99mo是一种简单易行的方法，从防核扩散和废物管理的角度来看是有利的。然而，生产具有高放射性的99m Tc溶液是困难的，因为通过这种方法生产的99mo的特定放射性极低。因此，有必要开发一种新型的高钼吸附效率吸附剂。本研究采用医用99 Mo/ 99 m Tc发生器中常用的氧化铝(al2o3)作为Mo吸附剂。采用三种起始粉末制备了al2o3试样，并在不同温度下进行了烧结;此外，还评价了它们对钼的吸附和解吸性能。结果表明，氧化铝的晶体结构和比表面影响其对钼的吸附性能。此外，从每个显影的al2o3样品中洗脱的溶液的基本化学性质都在指南规定的范围内。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Transactions-Materials Research Society of Japan

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