Detecting volatile organic compounds

摘要

Compounds, particularly volatile organics (VOCS), are detected using a sensor where a PVC membrane barrier containing no plasticiser is interposed between the sample and detector. The sensor typically comprises an electrode system with the unplasticised PVC membrane forming an interface between the sample and the active electrode of the sensor. Utilty is in measurement of the ethanol content of alcoholic liquors or beverages during their manufacture. Other VOCS which are detectable are alkanols, aldehydes, ketones or benzenes.