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Vapor Concentrator for Ion Mobility Spectrometry


Concept Using a Vapor Concentrator for More Accurate Contraband Detection with Ion Mobility Spectrometry

Detecting concealed contraband at sensitive locations (such as airports, government buildings, and borders) is important to prevent terrorism and organized crime. Most contraband detection instruments measure vapor profiles to detect explosives, drugs, or other harmful chemicals. However, analysis can be inaccurate if a contraband substance does not emit enough vapor for detection. Too little vapor would require expensive chromatography or mass spectrometry techniques to ensure all analytes are measured properly.

To address these issues, the Transportation Security Laboratory envisions a low-cost and efficient contraband detection system using Ion Mobility Spectrometry. The imagined device contains a filtering system that traps, collects, and transfers vapor from suspected threats into a detection system rapidly. This innovation amplifies the signal and effectively increases the limit of detection. The concentrated release of vapor molecules allows the system to accurately sample high air volumes and identify hard-to-detect contraband and threats.

Technology Category Transportation Security & Explosives Characterization
Stage of Development Proof of Concept
Inventor Barry Smith
John Brady
Jeffrey Barber
US Patent number US11,709,149
Partnerships Sought Licensing or Collaborative Research and Development Agreement (CRADA)
DHS Component Science and Technology Directorate
Contact Information T2C@hq.dhs.gov

For a more detailed description download the PDF below.

Attachment Ext. Size Date
Vapor Concentrator for Ion Mobility Spectrometry PDF 1.66 MB 11/02/2023
Last Updated: 11/02/2023
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