FIELD: laboratory analysis, chemical analysis of impurities of heavy metals for preparation of water samples. SUBSTANCE: mixture of analyzed sample with oxydizing reagents is subjected to simultaneous exposure to microwave and ultraviolet radiations leading to destruction of organic components in analyzed sample. As result total and fast removal of substances hampering conducting of chemical analysis for content of impurities of heavy metals is reached. In gear for realization of process sources of ultraviolet radiation, absorption vessel filled with solution and joined to vessels for decomposition by means of gas extraction conduits and protected by screen are placed into resonator of microwave furnace. EFFECT: increased reliability of process and gear. 2 cl, 2 dwg, 1 tbl
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