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20世纪90年代末,出现了用于大体积水样中放射性核素测量的固相萃取片技术。对于锶,对2L体积样品,吸附率仍大于95%。该法比传统的放射化学分析法更简便快速,且有望应用于样品的现场分析。本工作研究了不同浓度的硝酸或盐酸对3M公司EmporeTM锶固相萃取片吸附性能的影响。首先制备了0.1～4mol/L硝酸或盐酸的系列锶溶液,锶的浓度均为1.5ppm,并在其中加入新分离的
In the late 1990s, solid-phase extraction sheet technology for radionuclide measurement in large volume water samples emerged. For strontium, the adsorption rate is still greater than 95% for 2 L volume samples. The method is simpler and faster than traditional radiochemical methods and is expected to be applied to on-site analysis of samples. This work studied the effects of different concentrations of nitric acid or hydrochloric acid on the adsorption performance of 3M EmporeTM strontium solid phase extraction chip. First, a series of strontium solutions of 0.1 ~ 4 mol / L nitric acid or hydrochloric acid were prepared. The concentration of strontium was 1.5 ppm, and the newly isolated