Development of an optimised method for analysis of Sr-90 in decommissioning wastes by triple quadrupole inductively coupled plasma mass spectrometry

摘要

The ongoing development of an optimised procedure for the measurement of Sr-90 in decommissioning samples using the latest generation triple quadrupole inductively coupled plasma mass spectrometry (ICP-QQQ-MS) is presented. The procedure incorporates digestion, and separation from interferences using a combination of wet chemical and instrument-based separation using the ICP-QQQ-MS reaction cell. The key factors under study are the procedural time and limits of detection achievable compared to existing radiometric techniques.