Abstract
Measuring 237Np and 239Pu in urine at low levels is important for both biomonitoring and radiological emergency response. Here we report a newly developed and validated analytical method used to determine 237Np and 239Pu in urine by selective retention of Np and Pu from 2 mL of urine directly onto TEVA® resin followed by SF-ICP-MS (coupled to a membrane desolvating introduction system) detection. The method provides solid phase extraction of Np/Pu with observed recovery ratios ranging from 89 to 113% and rapid results with limits of detection well below recommended detection guidelines for children and pregnant women (NCRP 161 reference).
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The authors thank Ms. Cynthia Ward who assisted in the proof-reading of the manuscript. Specifically, we would like to thank Dr. David Saunders for his guidance and advice throughout this work.
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Xiao, G., Liu, Y. & Jones, R.L. Determination of 237Np and 239Pu in urine using sector field inductively coupled plasma mass spectrometry (SF-ICP-MS). J Radioanal Nucl Chem 324, 887–896 (2020). https://doi.org/10.1007/s10967-020-07107-7
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DOI: https://doi.org/10.1007/s10967-020-07107-7