FIELD: spectral-emission analysis. SUBSTANCE: electric discharge is formed in zone of diaphragm separating electrodes in dish with electrolyte. Dish and diaphragm are produced from dielectric material. Electric discharge whose emission spectrum is registered by spectral analyzer is formed in region of 1.0 mm hole in diaphragm with voltage of 800 V between electrodes. EFFECT: increased accuracy of analysis. 2 dwg
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