Cryogen-free Online Monitoring of PAMS Hydrocarbons & Polar VOCs in Ambient Air by TD–GC–MS

This application note describes validation of a cryogen-free thermal desorption (TD)–GC–MS system for on-line monitoring of an extended range of very volatile species in ambient air, using the new trap-based Kori-xr system. It demonstrates the analysis of ‘ozone precursors’ (as specified by the US PAMS program), polar compounds and monoterpenes.