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Scientific article
English

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

Published inTalanta, vol. 68, no. 3, p. 623-628
Publication date2006-01-15
Abstract

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 an uranium colloidal particle in the plasma torch can be detected and measured for selected uranium ion masses (²³⁸U⁺, ²³⁵U⁺ or ²⁵⁴[²³⁸U¹⁶O]⁺) 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.

eng
Keywords
  • Single particle analysis
  • Uranium particle
  • Particle size
  • Isotope
  • Inductively coupled plasma-mass spectrometry
Citation (ISO format)
DEGUELDRE, Claude et al. Uranium colloid analysis by single particle inductively coupled plasma-mass spectrometry. In: Talanta, 2006, vol. 68, n° 3, p. 623–628. doi: 10.1016/j.talanta.2005.05.006
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ISSN of the journal0039-9140
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