METHOD AND DETECTOR FOR DETECTING GASES

摘要

The aim of the invention is to improve the identification of individual gas compounds which co-exist with other compounds that have substantially higher concentrations. To achieve this, the adsorbent (2) is heated in a cyclic manner by a thermal shock treatment of the gas sensor (4) and the compounds that are released in cycles are diffused from the measured gas side through the membrane-type adsorbent (2) to the gas sensor (4) and are detected by the latter (4). The adsorbent (2) of the corresponding detector is configured as a flat or tubular membrane and is positioned directly adjacent to the gas sensor (4), without touching the latter. The adsorbent (2) separates the gas sensor (4) from the measured gas and is heated in a cyclic manner by the heater (6) of the gas sensor (4) in such a way that the desorbed gaseous compounds are identified using the active layer (5) of the gas sensor (4).