FIELD: technique of gas analysis. SUBSTANCE: method deals specifically with detection of traces of chemical toxic agents. Ionization of gas flow and separation of components of gas by mobility of ions in lateral electric field having polarity-asymmetrical periodic component are conducted for analysis of gas mixture. Then gas flow is cooled and mixed with flow of gas carrying developing substance to form aerosol based on analyzed nuclei of condensation. Aerosol is registered, for example, by means of nephelometer by scattered radiation when it is exposed to collimated beam of light. Cooling of gas flow with determined kind of ions can be combined with heating in chamber for development of flow of gas containing developing substance. EFFECT: enhanced efficiency of analysis. 4 cl, 2 dwg
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