Optimization of the radiochemical separation and determination for 147Pm and 151Sm in nuclear waste samples.

This work describes the development and optimization of the radiochemical separation of ¹⁴⁷Pm and ¹⁵¹Sm. The two main challenges addressed were: the radiochemical separation of the lanthanides by using LN Resin and DGA,N Resin, and the quantification of the chemical recovery of ¹⁴⁷Pm with a non-isotopic analogue (i.e. neodymium). The applicability of radiochemical separation procedures was investigated by using spiked samples. The optimized radiochemical separation procedure by using LN Resin was applied to a reactor cooling water primary coolant sample with an automated system. Sector Field Inductively Coupled Plasma Mass Spectrometry (SF-ICP-MS) was used to determine the chemical recoveries. [ABSTRACT FROM AUTHOR]