Abstract
Abstract This paper describes the sequential separation of actinides such as U, Pu, Am, and Sr in urine samples. Urine bioassay is one of the preferred methods for assessing low level of internal contamination in radiation workers. Any special monitoring case necessitates the completion of sample analysis as soon as possible. Hence, in this work, efforts have been made to reduce the overall analysis time for the estimation of actinides and strontium in urine samples. In the described method, TRU and Sr-spec resins are used in tandem for the separation of actinides and strontium. The proposed method is very convenient to handle, rapid, and robust when compared with ion exchange and other extraction chromatography work. Radiochemical recoveries of 232U, 242Pu, 243Am, and 90Sr obtained are in the range of 66%–89%, 63%–99%, 63%–96%, and 61%–79% with an average and standard deviation of 77.2% ±7.2, 79.8% ±11.4, 80.9% ±11.2, and 71.8% ±5.9, respectively.
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