Saber UCV
Repositorio Institucional
Repositorio Institucional
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https://saber.ucv.ve/handle/10872/3922
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| Title: | Scanning vs. single spot laser ablation (λ=213 nm) inductively coupled plasma mass spectrometry |
| Authors: | Gonzalez, Jhanis J. Fernández, Alberto Mao, Xianglei Russo, Richard E. |
| Keywords: | Laser ablation Inductively coupled plasma mass spectrometry NIST glass Sampling strategy |
| Issue Date: | 2004 |
| Publisher: | Spectrochimica Acta |
| Series/Report no.: | Part B;59 |
| Abstract: | 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 µm/s) 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. |
| URI: | http://hdl.handle.net/10872/3922 |
| ISSN: | 0584-8547 |
| Appears in Collections: | Artículos Publicados |
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