Discussion on the development of water ⁹⁰Sr analysis method

In this paper, the application and research of environmental water strontium-90 measurements in domestic and foreign are reviewed. The challenges and opportunities of ⁹⁰Sr radiochemical analysis are pointed out. On a technical perspective, this paper analyzes the problems and future development of ⁹⁰Sr analysis in China, clarifies the improvement direction of the method, expounds the main factors that influence the stability of extraction chromatography method, analyzes the principle which may influence the stability of extraction chromatography method from the sample pretreatment methods, the chemical recovery and beta counting rate. Then suggestions are given by the laboratory practice. (authors)