Sampler for collection and analysis of low vapor pressure chemical (LVPC) particulates/aerosols.
Detection of low vapor pressure chemicals (LVPCs) such as pesticides and other toxic/hazardous materials on various environmental surfaces as well as LVPC aerosols is a significant challenge for current vapor phase detectors. We describe a novel sampling device which utilizes stainless steel screens coated with a sticky polydimethylsiloxane coating for collecting LVPCs aerosolized off of a surface. Results are presented for the collection and detection of a pesticide simulant, dimethyl methylphosphonate sorbed onto silica gel (DMMP/SG), using direct analysis in real time-cylindrical ion trap mass spectrometry (DART-CITMS).
Naval Research Laboratory , Code 5620, Washington, DC.
K J
KJ
Ewing
D
D
Gibson
J
J
Sanghera
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F
Miklos