Patent ID: 8334505

Claim:
A system comprising: a microwave or high-frequency RF energy source disposed in a cavity to ionize particles of a reagent vapor in a plasma chamber with microwave or RF energy to form one or more reagent ions, the plasma chamber at least partially located in the cavity; a supply to facilitate analysis of a non-ionized sample gas including one or more volatile organic compounds in at least a trace concentration; a drift chamber including an inlet port allowing the non-ionized sample gas to enter the drift chamber to interact with the one or more reagent ions from the microwave or high-frequency RF energy source to form one or more product ions, the drift chamber having an electromagnetic field generated therein; and a quadrupole or time-of-flight mass spectrometer module disposed relative to an exit orifice of the drift chamber to collect the one or more product ions and the one or more reagent ions to facilitate a determination of a value for at least one of a peak intensity or mass of each of the one or more product ions and the one or more reagent ions.