%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 Icp-ms
%K Mass
%K Mass spectrometry
%K Mass spectrometry
%K Matrix
%K Plasma
%K Plasma mass spectrometry
%K Plasma-mass spectrometry
%K Sample
%K Samples
%K Sampling
%K Spectrometry
%K Dependence
%K Signal
%K Single
%K Pulsed laser
%K Pulsed laser
%K Nm
%K Laser beam
%K 213 nm
%K 213 nm laser 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 icp-ms
%K Nist
%K Nist glass
%K Precision
%K Reference material
%K Reference materials
%K Scan
%K Series
%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>