Uranium colloid analysis by single particle inductively coupled plasma-mass spectrometry

被引:96
作者
Degueldre, C [1 ]
Favarger, PY
Rossé, R
Wold, S
机构
[1] Paul Scherrer Inst, Dept Nucl Energy & Safety, CH-5232 Villigen, Switzerland
[2] Univ Geneva, Inst Forel, CH-1290 Versoix, Switzerland
[3] Royal Inst Technol, Dept Chem, Stockholm, Sweden
关键词
single particle analysis; inductively coupled plasma-mass spectrometry; uranium particle; particle size; isotope;
D O I
10.1016/j.talanta.2005.05.006
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Uranium single particle analysis has been performed by inductively coupled plasma-mass spectrometry (ICP-MS) and the performances are compared with that provided by scanning electron microsopy and single particle counting. The transient signal induced by the flash of ions due to the ionisation of all titanium Colloidal particle in the plasma torch can be detected and measured for selected uranium ion masses (U-238(+), U-235(+) or 254[(UO)-U-238-O-16](+)) by the mass spectrometer. The signals recorded via time scanning are analysed as a function of particle size or fraction of the studied element or isotope in the colloid phase. The frequency of the flashes is directly proportional to the concentration of particles in the colloidal suspension. The feasibility tests were performed on uranium dioxide particles. The study also describes the experimental conditions and the choice of mass to detect uranium colloids in a single particle analysis mode. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:623 / 628
页数:6
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