Metal oxide semiconductor vapor detection

B. M. Cordero, and M. Forina, Electronic Nose Based on Metal Oxide Semiconductor Sensors as a Fast Alternative for the Detection of Adulteration of Virgin Olive Oils, Anal. Chim. Acta 2002,459, 219 C. L. Honeyboume, Organic Vapor Sensors for Food Quality Assessment, J. Chem. Ed. 2000, 77, 338 E. Zubritsky, E-Noses Keep an Eye on the Future. Anal. Chem. 2000, 72. 

PPEs and PAEs have come a long way from the first synthesis in 1990 to sophisticated sensory and photonic materials PAEs and PPEs are very different from PPVs—despite their obviously close structural relation. PPEs are oxidatively more stable than PPVs, which makes them less suitable for some organic semiconductor applications, but PPEs, high fluorescence coupled with their great environmental stability makes them attractive as parts for sensors that detect biogenic and toxigenic materials, transition and alkali metal ions, and vapors exuding from land mines. 

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