Detection of dissolved TNT and DNT in soil with a MEMS explosive particle detector

Vamsee K. Pamula; Richard B. Fair

doi:10.1117/12.396283

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22 August 2000 Detection of dissolved TNT and DNT in soil with a MEMS explosive particle detector

Vamsee K. Pamula, Richard B. Fair

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Proceedings Volume 4038, Detection and Remediation Technologies for Mines and Minelike Targets V; (2000) https://doi.org/10.1117/12.396283
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

MEMS technology was used to fabricate bimetallic cantilever sensor for detecting the TNT and DNT residue found in mien fields. A number of experiments yielded reproducible result for the detection of pure 2,4-Dinitrotoluene nanogram particles. A few experiments were performed unsuccessfully to detect explosives directly from soil by placing it on the cantilevers. Alternatively, DNT and TNT were extracted from the soil using acetone and subsequently letting acetone to leave DNT and TNT as a residue. This residue has been placed on the cantilever for detection that yielded very uncertain result. This residua contains a number of other materials, which changes the physical properties of the residue considerable making it unfit for detection using microcantilevers. T

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Vamsee K. Pamula and Richard B. Fair "Detection of dissolved TNT and DNT in soil with a MEMS explosive particle detector", Proc. SPIE 4038, Detection and Remediation Technologies for Mines and Minelike Targets V, (22 August 2000); https://doi.org/10.1117/12.396283

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