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中子活化分析法是一种核分析方法,它的基础是核反应。该法是用一定能量和流强的中子轰击待测样品,然后用射线探测仪器测定由核反应生成的放射性核素衰变时放出的射线。通过测定射线能量或半衰期进行定性鉴定;通过测定射线强度作定量分析。中子活化分析法是一种先进的痕量元素分析技术,它与其它一些分析方法相比,有如下一些优点:(1)灵敏度高。对周期表中80％以上的元素分析灵敏度约在10~(6)克至10~(-13)克;(2)准确度高,精密度好;(3)可实现多元素分析。在一份试样
Neutron activation analysis is a nuclear analysis method based on nuclear reactions. The law is to use a certain amount of energy and flow of neutron bombardment of the sample to be measured, and then use a ray detector to measure the radionuclide radionuclides emitted by the nuclear reaction decay. Qualitative identification by measuring the energy or half-life of the rays; Quantitative analysis by measuring the intensity of the rays. Neutron activation analysis is an advanced trace element analysis technology, which compared with some other analysis methods, has the following advantages: (1) high sensitivity. More than 80% of the periodic table elemental analysis sensitivity of about 10 ~ (6) grams to 10 ~ (-13) grams; (2) high accuracy and precision; (3) can achieve multi-element analysis. In a sample