Dear all,
I have Perkinelmer and Agilent model to analyze ambient air VOCs in our laboratory.
We also have thermal desorption system.

Usually I set mass range in the range of 33~500 amu to identify VOCs in the ambient air(outdoor, indoor, manufacturing fabrication air).

My question are like this.
What happen if I set mass range like 5~500 amu?
Oxygen. Methane, water, carbon dioxide can disturb of VOCs analysis? Actually I never set mass range like 5~500amu to analyze VOCs. Has anyone experienced it?