Spatial resolution in laser ablation inductively coupled plasma mass spectrometry

Authors

  • A. G. Coedo Centro Nacional de Investigaciones Metalúrgicas (CSIC).
  • M. T. Dorado Centro Nacional de Investigaciones Metalúrgicas (CSIC).

DOI:

https://doi.org/10.3989/revmetalm.0915

Keywords:

Laser ablation, Inductively coupled plasma mass spectrometry, Spatial resolution, Welded samples, Coated metal samples

Abstract


Laser ablation as sampling system in inductively coupled plasma mass spectrometry (LA-ICP-MS) offers the possibility to know the spatial distribution of elements present in a solid sample. By varying the position of the laser beam on the sample surface, the profile of the lateral distribution of elements is obtained and, with successive pulses fired on a fixed point, profile in depth is achieved. After optimization of operating parameters the technique has been applied to samples with different compositions in both surface and depth.With regard to the lateral resolution has been found that in a length similar to the crater diameter of the laser beam, the signals of the elements appear mixed, making difficult to accurately establish the interface. Regarding the resolution in depth is clearly established the influence of the natural abundance of the measured isotopes.

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Published

2010-02-28

How to Cite

Coedo, A. G., & Dorado, M. T. (2010). Spatial resolution in laser ablation inductively coupled plasma mass spectrometry. Revista De Metalurgia, 46(1), 52–68. https://doi.org/10.3989/revmetalm.0915

Issue

Vol. 46 No. 1 (2010)

Section

Articles

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