活体小动物体内钾含量的放射性测定  

RADIOACTIVE DETERMINATION OF THE POTASSIUM CONTENT IN LIVING SMALL ANIMAL

作　　者：王海婴[1] 罗贤清[1] 黄汉樵 

机构地区：[1]华中农业大学基础部,武汉430070

出　　处：《同位素》1993年第1期29-33,共5页Journal of Isotopes

基　　金：国家自然科学基金

摘　　要：本文用NaI(Tl)γ谱仪测量活体动物体内的^(40)K γ能谱,采用与标准模拟动物模型相比较的方法(对比法)测定动物体内钾含量。实验结果表明:本方法与常规原子吸收法测定结果偏差小于8%。We use NaI(Tl) detector and multichannel analyser to record the net integral counts of ^(40)K characteristic γ-rays both in living small animal and its imitated phantom. This method may analyse quantitatively the potassium content in living small animals. Comparing the results of radioactive Assay and Atomic Absorption for 20 mice weighing 200—325 g, it was found that their deviation was less than 12%.

关 键 词：放射性测定 ^46K 活体 钾含量 

分 类 号：Q581[生物学—生物化学]