Zastosowanie poli(dicyjanopropylosiloksanu) w czujnikach z akustyczną falą powierzchniową do detekcji fosforoorganicznych środków trujących w powietrzu

The paper investigates applicability of poly(biscyanopropylsiloxane) (PCNPS) as a chemosensitive coating agent for surface acoustic wave (SAW) sensors to organophosphorus chemical warfare agent (CWA) detection. The polymer was deposited on SAW resonators by vacuum evaporation. Sensor sensitivity to...

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Bibliographic Details
Published inOchrona Srodowiska Vol. 40; no. 2; pp. 9 - 16
Main Authors Grabka, Micha, Jasek, Krzysztof, Choma, Jerzy
Format Journal Article
LanguagePolish
Published Warsaw Polski Zrzeszeni Inzynierow i Technikow 01.04.2018
Subjects
Acetonitrile
Acoustic noise
Analytical chemistry
Biosensors
Butanol
Chemical sensors
Chemical warfare
Dimethylformamide
Evaporation
Glass transition temperature
Heptanes
Noise levels
Organic chemistry
Organophosphorus compounds
Sensitivity
Sensors
Surface acoustic wave devices
Surface acoustic waves
Transition temperatures
Triethylamine
Vacuum
Vacuum evaporation
Vapors
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Summary:The paper investigates applicability of poly(biscyanopropylsiloxane) (PCNPS) as a chemosensitive coating agent for surface acoustic wave (SAW) sensors to organophosphorus chemical warfare agent (CWA) detection. The polymer was deposited on SAW resonators by vacuum evaporation. Sensor sensitivity to organophosphorus compounds was investigated using dimethyl methylphosphonate (DMMP) vapors via sensor frequency and amplitude response testing. Also, other substances from the set (heptane, triethylamine (TEA), acetonitrile (ACN), dimethylformamide (DMF), n-butanol) were tested as potential interference factors. Excellent sensitivity of frequency signal was achieved (about 500 Hz/ppm) against DMMP. Sensitivity toward the remaining test substances, except for DMF, was comparable to the noise level. Low glass transition temperature of the PCNPS phase, corresponding to good dynamic properties of the sensors, indicates suitability of this phase for application in SAW sensors.
ISSN:1230-6169