几种核素放射性标准溶液的研制  

DEVELOPMENT OF STANDARD SOLUTIONS FOR SEVERAL RADIONUCLIDES

作　　者：杨景霞[1] 陈细林[1] 喻以光[1] 贾雪文[1] 

机构地区：[1]中国原子能科学研究院计量测试部

出　　处：《原子能科学技术》1994年第3期269-272,共4页Atomic Energy Science and Technology

摘　　要：介绍了制备放射性标准溶液的基本程序，用ＨＰＧｅγ谱仪检验核纯度，选择了配制标准溶液的适宜条件，并对所研制的各种核素的放射性溶液（￣（６０）Ｃｏ，￣（１３７）Ｃｓ，￣（１３４）Ｃｓ，￣（９０）Ｓｒ－￣（９０）Ｙ，￣（１２５）Ｉ，￣（１３１）Ｉ，￣（２４１）Ａｍ，￣（６３）Ｎｉ）的长期稳定性进行了检查。配制的溶液在均匀性、稳定性和量值的准确性方面达到了对放射性标准物质的要求。The basic procedures of preparing radioactive solutions are intrnduced,radionuclidic purity is checked with HPGe-γ spectrometer, proper conditions for preparing solution are chosen,the re- search of the loss of radionuclide absorbed by the container’s wall is camed out,and the stabilities of the several standard solutions prepared(￣(60)Co,￣(137)Cs,￣(134)Cs, ￣(90)Sr-￣(90)Y,￣(125)I,￣(131)I,￣(241)Am ?63)Ni)are checked for a long period. The solutions prepared are consistent with those of international level in homogeneity,stability and accuracy.

关 键 词：标准溶液 比活度 放射性同位素 

分 类 号：TB98[一般工业技术—计量学]