%0 Journal Article
%K performance
%K material
%K ablation
%K laser
%K laser ablation
%K laser-ablation
%K analysis
%K time
%K beam
%K glass
%K glasses
%K icp ms
%K icp-ms
%K icpms
%K mass
%K mass spectrometry
%K mass-spectrometry
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%K plasma mass spectrometry
%K plasma-mass-spectrometry
%K sample
%K samples
%K sampling
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%K dependence
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%K single
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%K pulsed-laser
%K nm
%K laser beam
%K 213 nm
%K 213 nm laser ablation icp-ms
%K ablation icp-ms
%K ablation-icp-ms
%K accuracy
%K analytical performance
%K glass standard
%K glass standard reference materials
%K icp-ms analysis
%K laser ablation icp-ms
%K laser ablation icpms
%K laser-ablation-icp-ms
%K nist
%K nist glass
%K precision
%K reference material
%K reference materials
%K scan
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%K standard
%K standard reference materials
%K strategies
%K strategy
%A Jhanis J Gonzalez
%A Alberto J Fernández
%A Xianglei Mao
%A Richard E Russo
%B Spectrochim.Acta Pt.B-At.Spec.
%D 2004
%F Laser
%G eng
%M 161
%P 369-374
%T Scanning vs. single spot laser ablation (213 nm) inductively coupled plasma mass spectrometry
%V 59
%2 LBNL-56155 
%X <p>Sampling strategy is defined in this work as the interaction of a repetitively pulsed laser beam with a fixed position on a sample (single spot) or with a moving sample (scan). Analytical performance of these sampling strategies was compared by using 213 nm laser ablation ICP-MS. A geological rock (Tuff) was quantitatively analyzed based on NIST series 610-616 glass standard reference materials. Laser ablation data were compared to ICP-MS analysis of the dissolved samples. The scan strategy (50 mmys) produced a flat, steady temporal ICP-MS response whereas the single spot strategy produced a signal that decayed with time (after 60 s). Single-spot sampling provided better accuracy and precision than the scan strategy when the first 15 s of the sampling time was eliminated from the data analysis. In addition, the single spot strategy showed less matrix dependence among the four NIST glasses.</p>