Optical device for detecting volatile compounds or adsorbable gas and associated method for detecting and quantifying volatile compounds

摘要

The subject of the present invention is an optical device for detecting (1) volatile compounds or adsorbable gas comprising: - a sensitive reflective element (3) comprising: * a substrate layer (31), * at least one sensitive layer (33) configured to allow adsorption and desorption of volatile compounds, and * an electrically conductive layer (35) between the substrate layer (31) and the sensitive layer (33), configured to heat the sensitive layer (33) by Joule effect, - a light source (5) arranged to illuminate the sensitive layer (33), - a light detector (7) configured to measure the light intensity reflected by the sensitive reflective element (3), and - a processing and calculation unit (9). The present invention also relates to a method for detecting and quantifying volatile compounds or gases using this optical detection device. Abstract figure: Figure 1