Going Beyond the Requirements of US EPA Method TO-15: Innovative Cryogen-free Ambient Air Monitoring of Trace-level Air Toxics at High Humidity

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This application note demonstrates how a canister autosampler (using innovative cryogen-free water-removal technology) and thermal desorption–gas chromatography–mass spectrometry (TD–GC–MS) together allow the analysis of a range of trace-level air toxics from air at 100% relative humidity (RH),
in accordance with US EPA Method TO-15 and related
methods with lower detection limits.

It is further shown how this system is able to detect 65 target compounds ranging from propene to naphthalene, with method detection limits as low as 0.7 pptv in SIM mode.

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