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在无机分析中,使用放射性示踪剂的定量分析法与活化分析比较,有下面一些优点:不需靠近核反应堆和粒子加速器.测量放射性的计数装置比较简单.操作的放射性强度较小,一般不需要远距离操作技术.另外,对在活化分析中反应截面小且产物半衰期短的元素,以及因无关核反应的干扰而不能进行测定的元素,可选用适当的高比放射性同位素,用示踪法进行测定.非同位素示踪剂的使用,有时也可增进方法的灵敏度. 与一般分析方法比较,放射性示踪法具有的特色是:多数不需要定量分离回收加入的示踪剂及载体.可使用的放射性示踪剂浓度范围很宽,可从百分之几到10~(1 2)分之一.在许多情况下,操作相当简单和快速,也易于自动化.
Quantitative analysis using radioactive tracers compared to activation analysis has the following advantages in inorganic analysis: • Elimination of the need to be close to nuclear reactors and particle accelerators • The counting device for measuring radioactivity is relatively simple • The radioactivity intensity of the operation is small and generally not required Long-distance operation technology. In addition, the activation analysis of small cross-section and short half-life of the product element, and due to interference caused by unrelated nuclear reactions can not be measured elements, the choice of appropriate high specific radioisotopes, using tracer method was measured The use of non-isotopic tracers can sometimes enhance the sensitivity of the method, and the radiotracer has many of the features that do not require quantitative separation and recovery of the added tracer and carrier compared to the usual methods of analysis. Tracer concentrations range from a few percent to one-tenth to one-half percent, and in many cases are fairly simple and fast to operate and are also easy to automate.