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Updated: Jan 2, 2026

Quantitative Detection of Trace Explosive Vapors by Programmed Temperature Desorption Gas Chromatography-Electron Capture Detector
Published on: July 25, 2014
Air2Liquid Method for Selective, Sensitive Detection of Gas-Phase Organophosphates
Michael C Brothers1,2, Sungbong Kim, Doug Adkins3
1711th Human Performance Wing, Air Force Research Laboratory , Wright-Patterson AFB , Ohio 45433 , United States.
Abstract:
Environmental hazards typically are encountered in the gaseous phase; however, selective sensing modalities for identifying and quantitating compounds of interest in an inexpensive, pseudo-real-time format are severely lacking. Here, we present a novel proof-of-concept that combines an Air2Liquid sampler in conjunction with an oil-in-water microfluidic assay for detection of organophosphates. We believe this proof-of-concept will enable development of a new platform technology for semivolatile detection that we have demonstrated to detect 50 pmoles (2 ppb) of neurotoxic organophosphates.
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