Summary
The problem of internal standardization in optical emission spectrometry of a laser produced analytical microplasma has been investigated. Excellent analytical results almost independent on the plasma temperature and the state of evaporation of the ablated sample material have been found for iron and chromium using Fe/Cr binary samples. However, for elements with very different vapour pressures, internal standardization can only be carried out if the atomization process in the plasma is completed. This is demonstrated with brass samples, where the fractional evaporation of zinc and copper heavily influences the emission data in the first period of the laser produced plasma.
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Dedicated to Prof. Dr. G. Tölg on the occasion of his 60th birthday
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Ko, J.B., Sdorra, W. & Niemax, K. On the internal standardization in optical emission spectrometry of microplasmas produced by laser ablation of solid samples. Z. Anal. Chem. 335, 648–651 (1989). https://doi.org/10.1007/BF01204064
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DOI: https://doi.org/10.1007/BF01204064