Abstract
A mathematical model is suggested for the diffusion transport of atoms of elements in the body of an arc electrode used in spectroscopic analysis. Calculations are used to show that the mass exchange in the electrode channel influences the form of curves representing the time dependences of the spectral line intensities and produces secondary maxima. The theoretical conclusions are confirmed by experiments carried out on elements that do not form nonvolatile compounds in the electrode channel. The results of modeling and experiments are used to propose ways of increasing the precision of spectroscopic analysis and improving the internal standard method.
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Translated from Izvestiya Uchebnykh Zavedenii, Fizika, No. 6, pp. 19–24, June, 1980.
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Morgulis, T.E., Popyalkovskaya, L.K., Kuznetsova, A.I. et al. Modeling of the transport of atoms in a carbon arc electrode used in spectroscopic analysis. Soviet Physics Journal 23, 474–479 (1980). https://doi.org/10.1007/BF00892310
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DOI: https://doi.org/10.1007/BF00892310