Features of Sensing Materials Used in Acoustic Wave Gas Sensors

2 Features of Sensing Materials Used in Acoustic Wave Gas Sensors 

Most nonpolar and moderately polar organic vapors alkanes, alkenes, chlorinated aliphatics, ketones, esters, ethers, higher tilcohols 

Polar vapors water, alcohols, phenols, chlorophenols, glycols, aliphatic and aromatic amines Higher boiling-point oiganics acidic and basic organics, multifunctional organics, pesticides, polynuclear aromatic hydroctirbons, etc. 

Vapor Capacity at saturation, g(vapor)/g(charcoal) Capacity at saturation, g(vapor)/g(rubber) 

Source Data from Comyn (1985) and Wood and Moyer (1991) 

---