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Anzano JM, Villoria MA, Ruíz-Medina A, et al. Laser-induced breakdown spectroscopy for quantitative spectrochemical analysis of geological materials: effects of the matrix and simultaneous determination. Anal Chim Acta. 2006;575(2):230-5doi: 10.1016/j.aca.2006.05.077.
Anzano, J. M., Villoria, M. A., Ruíz-Medina, A., & Lasheras, R. J. (2006). Laser-induced breakdown spectroscopy for quantitative spectrochemical analysis of geological materials: effects of the matrix and simultaneous determination. Analytica chimica acta, 575(2), 230-5. https://doi.org/10.1016/j.aca.2006.05.077
Anzano, Jesús M, et al. "Laser-induced breakdown spectroscopy for quantitative spectrochemical analysis of geological materials: effects of the matrix and simultaneous determination." Analytica chimica acta vol. 575,2 (2006): 230-5. doi: https://doi.org/10.1016/j.aca.2006.05.077
Anzano JM, Villoria MA, Ruíz-Medina A, Lasheras RJ. Laser-induced breakdown spectroscopy for quantitative spectrochemical analysis of geological materials: effects of the matrix and simultaneous determination. Anal Chim Acta. 2006 Aug 11;575(2):230-5. doi: 10.1016/j.aca.2006.05.077. Epub 2006 Jun 02. PMID: 17723596.
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Anal Chim Acta. 2006 Aug 11;575(2):230-5. doi: 10.1016/j.aca.2006.05.077. Epub 2006 Jun 02.

Laser-induced breakdown spectroscopy for quantitative spectrochemical analysis of geological materials: effects of the matrix and simultaneous determination.

Analytica chimica acta

Jesús M Anzano, Mark A Villoria, Antonio Ruíz-Medina, Roberto J Lasheras

Affiliations

  1. Laser Analytical Spectroscopy Lab, Department of Analytical Chemistry, Faculty of Sciences, Building D, University of Zaragoza, Zaragoza 50009, Spain. [email protected]

PMID: 17723596 DOI: 10.1016/j.aca.2006.05.077

Abstract

A microscopic laser-induced breakdown spectrometer was used to evaluate the analytical matrix effect commonly observed in the analysis of geological materials. Samples were analyzed in either the powder or pressed pellet forms. Calibration curves of a number of iron and aluminum compounds showed a linear relationship between the elemental concentration and peak intensity. A direct determination of elemental content can thus be made from extrapolation on these calibration curves. To investigate matrix effects, synthetic model samples were prepared from various iron and aluminum compounds spiked with SiO2 and CaCO3. The addition of these matrices had a pronounced analytical effect on those compounds prepared as pressed pellets. However, results indicated the absence of matrix effects when the samples were presented to the laser as loose powders on tape and results were compared to certified values, indicating the reliability of this approach for accurate analysis, provided the sample particle diameters are greater than approximately 100 microm. Finally, the simultaneous analysis of two different elements was demonstrated using powders on tape.

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