Development of a versatile sample preparation method and its application for rare-earth pattern and Nd isotope ratio analysis in nuclear forensics

作者：Krajko J^*; Varga Z; Wallenius M; Mayer K

来源：Journal of Radioanalytical and Nuclear Chemistry, 2015, 304(1): 177-181.

DOI：10.1007/s10967-014-3505-3

• Nuclear forensics
• Uranium ore concentrate
• Lanthanides
• Pre-concentration
• Neodymium isotope ratio

An improved sample preparation procedure for trace-levels of lanthanides in uranium-bearing samples was developed. The method involves a simple co-precipitation using Fe(III) carrier in ammonium carbonate medium to remove the uranium matrix. The procedure is an effective initial pre-concentration step for the subsequent extraction chromatographic separations. The applicability of the method was demonstrated by the measurement of REE pattern and Nd-143/Nd-144 isotope ratio in uranium ore concentrate samples.

• 出版日期2015-4