Application of extractive liquid scintillation spectrometry for rapid determination of uranium

作者：Reddy Priyanka J^*; Pulhani Vandana; Dhole S D; Bhade S P D; Anilkumar S; Kolekar R V; Singh Rajvir

来源：Journal of Radioanalytical and Nuclear Chemistry, 2016, 309(3): 1049-1057.

DOI：10.1007/s10967-016-4698-4

• Uranium
• Extractive scintillator
• Liquid scintillation spectrometry
• U-234/U-238 activity ratios

A radiochemical technique for estimation of uranium concentration and U-234/U-238 isotopic ratios by direct extraction of uranium with Bis (2-ethylhexyl) phosphate (HDEHP) in toluene at an optimized pH of 2-2.5 with an efficiency of 95-99 % was standardized. The extractant also acted as a scintillator for measurement of alpha radiations by liquid scintillation spectrometer (LSS). The method was validated by estimating the ratios of U-234/U-238 in certified reference materials like, IAEA RGU-1, Depleted uranium, Ammonium di-uranate samples and ore samples from different locations in India. Conventional radiochemical separation and alpha spectrometry of electroplated source was used to compare and ascertain the isotopic ratios of uranium.

• 出版日期2016-9