Portable chemical gas sensor prototype for nitroaromatic compounds detection

This paper presents the conception and the development of portable gas sensor prototypes for nitroaromatic compounds detection. It is based on quartz crystal microbalance (QCM) principle and a data processing. The sensitive material is a polymer which was chosen for its good sensibility and robustness. This prototype is able to detect 3 ppm of nitroaromatic compound with a high selectivity.