Abstract
This work is devoted to the study of sensory properties of nanocomposites of electrically conductive polymers towards a number of phosphorus and organochlorine volatile compounds that are simulators of toxic gaseous substances, as well as nitroaromatic simulators of explosive organic substances. Gas sensitivity measurements were performed using an array of chemoresistive sensor microelectrodes covered with thin layers of these nanocomposites. The relative responses was at the level of 4–5%, the detection threshold depending on the type of analyzed toxic substances was from 10 to 100 ppm, the response rate was about 1 minute. The possibility of qualitative identification of toxic and explosive substances in a wide range of concentrations using the methods of statistical analysis of data from the sensory array has been demonstrated.
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