%0 Journal Article
%K Particle
%K USA
%K CO
%K Efficiency
%K Material
%K Ablation
%K Laser
%K Laser ablation
%K Laser ablation
%K Analysis
%K Time
%K Ablation efficiency
%K Analysis of solids
%K Ca
%K Ceo2
%K Ceramic
%K Composition
%K Dissolution
%K E
%K Element
%K Form
%K Fractionation
%K Glass
%K Glasses
%K Homogeneity
%K Icp-ms
%K Icp-ms
%K Icp-ms
%K Impurities
%K Inductively coupled plasma (icp)
%K Inductively coupled plasma mass spectrometry
%K Inductively-coupled plasma
%K Laser ablation inductively coupled plasma mass
%K Liquid
%K Mass
%K Mass spectrometer
%K Mass spectrometry
%K Mass spectrometer
%K Mass spectrometry
%K Matrix
%K Nebulization
%K Paper
%K Pellet
%K Plasma
%K Plasma mass spectrometry
%K Plasma-mass spectrometry
%K Powders
%K Precise
%K Pressed pellets
%K River
%K Sample
%K Samples
%K Sampling
%K Solid sample introduction
%K Solids
%K Spectrometer
%K Spectrometry
%K Trace-elements
%A Oleg V Borisov
%A Christopher J Bannochie
%A Richard E Russo
%B Applied Spectroscopy
%D 2001
%F Laser
%G eng
%M 135
%P 1304-1311
%T Laser ablation inductively coupled plasma mass spectrometry of pressed pellet surrogates for Pu materials disposition
%V 55
%2 LBNL-48422
%X <p>Successful Pu disposition by immobilization in glass or ceramic form requires accurate and precise knowledge of impurity amounts. Analysis of Pu material by conventional liquid nebulization requires dissolution, which is difficult due to the refractory nature of the samples. Laser ablation is a suitable sampling technique for direct analysis of solids. This paper demonstrates the procedures that were established for PuO<sub>2</sub> analysis using laser ablation inductively coupled plasma mass spectrometer (ICP-MS). Pressed pellets prepared from CeO<sub>2</sub> were used to simulate PuO<sub>2</sub>. Effects of laser conditions, sample preparation, and matrix composition, specifically mass of a matrix element and color, on the analyses of CeO<sub>2</sub>, Bi<sub>2</sub>O<sub>3</sub>, and PtO<sub>2</sub> based pressed pellets were examined. Influence of mixing/grinding time on particle sizes, sample homogeneity, and ablation efficiency were investigated. Laser conditions that produce stoichiometric sampling were examined.</p>