The extracted solvent is analyzed using a Gas Chromatography Mass Spectrometry Triple Quadrupole (GC-QQQ), which can run 150 samples at once, drastically reducing needed manpower compared to the thermal desorption method, which requires an analyst to load each transfer tube one by one onto the thermal desorber. The GC-QQQ is more sensitive and can reach the lower concentrations (ng) compared to analyzing agents in a solvent with a normal GC-single quadrupole (ug).

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Keywords: cwa, dugway, gc-qqq, ground, proving