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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.1
- 수록면
- 851 - 863 (13page)
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초록· 키워드
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Increasing the spatial resolution of Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) is a challenge in microanalysis of geological samples. Smaller sizes for the laser beam will allow for (1) high resolution determination of trace element compositions, (2) accurate estimation of crystal/melt partition coefficients, (3) detailed characterization of diffusion profiles, and (4) analysis of fine volcanic glasses. Here, we report about the figures of merit for LA-ICP Quadrupole MS down to a spatial resolution of 5 μm. This study highlights the possibility to achieve suitable limits of detection, accuracy and precision for geological samples even at spatial resolutions of the order of 5 μm. At a beam size of 15 μm, precision (measured as one sigma) and accuracy (expressed as relative deviation from the reference value) are of the order of 10%. At a smaller beam size of 8 um, precision decreases to 15% for concentration above 1.7 μg g–1. As the beam size is decreased to ~5 μm, precision declines to about 15% and 20% for concentrations above 10 μg g–1 using 42Ca and 29Si as internal standard, respectively. Accuracy is better or equal to 10% and 13% at beam sizes of 15 and 10 μm, respectively. When the spatial resolution is increased to 8 μm, accuracy remains better than 15% and 20% for 42Ca and 29Si as internal standard, respectively. We employed such high-resolution techniques to volcanic glasses in ash particles of the 2010 Eyjafjallajökull eruption. Our results are well consistent with the previously reported data obtained at lower spatial resolution, supporting the reliability of the method.
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참고문헌 (52)
참고문헌 신청
Alagna, K. E. / 2008 / Microanalytical zircon and monazite U-Pb isotope dating by laser ablation-inductively coupled plasma-quadrupole mass spectrometry / Geostandards and Geoanalytical Research 32:103~120
Becker, J.S. / 1999 / Determination of trace elements in geological samples by laser ablation inductively coupled plasma mass spectrometry / Fresenius’ Journal of Analytical Chemistry 365:429~434
Bonta, M. / 2015 / A metric for evaluation of the image quality of chemical maps derived from LA-ICP-MS experiments / Journal of Analytical Atomic Spectrometry 30:1809~1815
Borisova, A. Y. / 2012 / Processes controlling the 2010 Eyjafjallajökull explosive eruption / Journal of Geophysical Research 117:B05202
Durrant, S. F. / 1999 / Laser ablation inductively coupled plasma-mass spectrometry : achievements, problems, prospects / Journal of Analytical Atomic Spectrometry 14:1385~1403
Becker, J.S. / 1999 / Determination of trace elements in geological samples by laser ablation inductively coupled plasma mass spectrometry / Fresenius’ Journal of Analytical Chemistry 365:429~434
Bonta, M. / 2015 / A metric for evaluation of the image quality of chemical maps derived from LA-ICP-MS experiments / Journal of Analytical Atomic Spectrometry 30:1809~1815
Borisova, A. Y. / 2012 / Processes controlling the 2010 Eyjafjallajökull explosive eruption / Journal of Geophysical Research 117:B05202
Durrant, S. F. / 1999 / Laser ablation inductively coupled plasma-mass spectrometry : achievements, problems, prospects / Journal of Analytical Atomic Spectrometry 14:1385~1403
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