Round-the-Clock, On-Line and Cryogen-Free Monitoring of VOC Hydrocarbons in Ambient Air

This Application Note describes validation of a thermal desorption system for on-line monitoring of a complex mix of volatile and very volatile hydrocarbons (‘ozone precursors’) in air.

The Markes UNITY-Air Server is a cost-effective system for round-the-clock speciated measurement of multiple trace-level volatile organic compounds (VOCs) in air or pure gases.

Markes UNITY–Air Server-xr is an air monitoring system that introduces a controlled flow of sample directly into an integral focusing trap, allowing automated on-line analysis of VVOCs and VOCs in air or gas. It’s ideal for round-the-clock air monitoring of volatiles such as PAMS ozone precursors and odorous species, especially in remote locations where unattended sampling at time specific intervals is necessary.