Detection of GB and DMMP Vapors by Love Wave Acoustic Sensors Using Strong Acidic Fluoride Polymers

Zimmermann, Céline; Mazein, Pierre; Rebière, Dominique; Déjous, Corinne; Pistré, Jacques; Planade, Roger

doi:10.1109/jsen.2004.828387

Cited by 37 publications

(47 citation statements)

References 9 publications

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“…6,7 Organophosphates are found as major components in chemical warfare agents such as tabun ͑GA͒, sarin ͑GB͒, and VX. 8 Recently, possibly due to concern about possible terrorist attacks, a number of reports have appeared on the detection of the organophosphonate DMMP using a variety of chemical sensor platforms: metal oxide sensors, 9,10 carbon nanotube sensors, 11,12 SAW sensors, 13 and microcantilever sensors. 14,15 While some of the required features for an electronic nose are satisfied according to these reports, most of them do not satisfy all the requirements ͓in particular, high sensitivity at low parts-per-trillion ͑ppt͒ concentrations, detection in several seconds, and reversible within a few minutes͔ simultaneously.…”

mentioning

confidence: 99%

Miniature sensor suitable for electronic nose applications

Pinnaduwage

Gehl²,

Allman³

et al. 2007

Review of Scientific Instruments

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A major research effort has been devoted over the years for the development of chemical sensors for the detection of chemical and explosive vapors. However, the deployment of such chemical sensors will require the use of multiple sensors (probably tens of sensors) in a sensor package to achieve selective detection. In order to keep the overall detector unit small, miniature sensors with sufficient sensitivity of detection will be needed. We report sensitive detection of dimethyl methylphosphonate (DMMP), a stimulant for the nerve agents, using a miniature sensor unit based on piezoresistive microcantilevers. The sensor can detect parts-per-trillion concentrations of DMMP within 10s exposure times. The small size of the sensor makes it ideally suited for electronic nose applications.

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mentioning

confidence: 99%

Miniature sensor suitable for electronic nose applications

Pinnaduwage

Gehl²,

Allman³

et al. 2007

Review of Scientific Instruments

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Section: Polymersmentioning

confidence: 99%

“…In general, the authors found that polymers with phenol hydroxyl groups performed better than those containing fluorinated aliphatic hydroxyl groups. Zimmerman et al [19] used a Love wave acoustic sensor coated with a strong acidic fluoride polymer (Fig. 2), observing sub-ppm detection limits for the nerve agent, sarin.…”

Section: Polymersmentioning

confidence: 99%

Synthetic Methods Applied to the Detection of Chemical Warfare Nerve Agents

Giordano¹,

Collins²

2007

COC

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Recent events as they relate to the war on terror make it abundantly clear that the rapid detection of chemical warfare nerve agents is essential. While the detection of these agents clearly falls into the purview of the analytical chemist, the importance of the organic chemist in the development of new techniques or approaches remains intact. This review serves to introduce the reader to a number of methods for detecting nerve agents with a focus on those techniques which rely on synthetic chemistry to improve overall performance with respect to selectivity, sensitivity and analysis time.

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“…Dimethyl-methyl-phosphonate (DMMP) is a typical simulant of Sarin that many researchers use in Sarin gas-related experiments. Various DMMP gas detection methods have been developed, including methods using semiconducting metal oxide (SMO) sensors [3,4], surface acoustic wave sensors [5][6][7][8][9], and micro-cantilever sensors [10,11]. Of the aforementioned sensors, SMO sensors have already been commercialized owing to their advantageously high response and short response time; however, they require a high operation temperature, preventing their widespread use.…”

Section: Introductionmentioning

confidence: 99%