FIELD: analytical chemistry of organic compounds, analysis of gas effluent of factories producing aniline-paint products and ammunition. SUBSTANCE: toluene or acetone solution of trioctylaminoxide or polyethylene glycol mark 2000 is used for modification of electrodes of piezoquartz sensor. Mass of deposited film in this case amounts to 5-7 mcg. EFFECT: increased efficiency of determination of nitroanilines in air mixture with toluidines, reduced limits of their detection, improved reproducibility of determination and speed of analysis. 1 dwg, 2 tbl
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