Rapid determination method of radiocesium in sea water by cesium-selective resin |
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Authors: | A Nakaoka H Yokoyama M Fukushima S Takagi |
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Institution: | (1) Energy and Environment Laboratory, Central Research Institute of Electric Power Industry, 11-1, Iwato-Kita 2-chome, 201 Komae-shi, Tokyo, (Japan) |
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Abstract: | A rapid and precise method of determining radiocesium corresponding to 5 mrem/y, the Japan AEC's guideline, was proposed.
The development and practical performance of cesium-selective resin and the determination method was described in this paper.
The resin was prepared by the formation of ammonium molybdophosphate in the structure of Amberlite XAD-7 resin. It took only
3 hours to carry out all the procedures the authors proposed. This value represents 1/10∼1/2 of the time of conventional method.
The concentration of137Cs and134Cs in sea water was determined to be 0.13∼0.16 pCi/1 and less than 7.1·10−2 pCi/1, respectively. |
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