We conducted spectroscopic studies of an electrical discharge plasma in a liquid, used for synthesis of nanosized particles of metals and their compounds. From the intensity ratio of the copper lines, we estimated the electron temperature, and from the Stark broadening of the hydrogen lines H α we determined the electron density in the electrical discharge plasma. Information about the concentration of copper atoms in the discharge was obtained from analysis of the spectra in the region of resonance lines of copper. We carried out a comparative analysis of the plasma parameters for spark and arc discharges in water, ethanol, and air. Based on the equation of state for an ideal plasma, taking into account the Debye correction, we estimated the pressure in the plasma channel.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 76, No. 6, pp. 907–914, November–December, 2009.
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Burakov, V.S., Nevar, E.A., Nedel’ko, M.I. et al. Spectroscopic diagnostics for an electrical discharge plasma in a liquid. J Appl Spectrosc 76, 856–863 (2009). https://doi.org/10.1007/s10812-010-9274-z
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DOI: https://doi.org/10.1007/s10812-010-9274-z