Abstract
A total reflection X-ray fluorescence method was developed to ascertain the absence of indium at a concentration level of >1 ng/mL in heavy water samples. A continuum strip in the energy range of 25–35 keV was used for sample excitation and In Kα was used as analytical line. The detection limit for indium, obtained after preconcentration and continuum excitation, was found to be 1 ng/mL with a sample size of 2 µL. A heavy water sample was analysed for indium using this approach.
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Acknowledgements
The authors are thankful to Dr. K.L. Ramakumar, Director Radiochemistry and Isotope Group, Dr. V. Venugopal Ex. Director, Radiochemistry and Isotope Group and Dr. S. Kannan, Head Fuel Chemistry Division for their interest in the present work. They also express their thanks to Dr. H. Bose ex. employee, Bhabha Atomic Research Centre for his help in the present work.
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Dhara, S., Sanjay Kumar, S., Misra, N.L. et al. TXRF determination of indium at ultra trace levels in heavy water samples using In Kα as analytical line and continuum excitation. J Radioanal Nucl Chem 306, 231–235 (2015). https://doi.org/10.1007/s10967-015-4180-8
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DOI: https://doi.org/10.1007/s10967-015-4180-8