Polyepichlorohydrin modified quartz crystal microbalance sensor for sulfur mustard vapor detection

Rajendra Bunkar; Ram Asrey; K D  Vyas; V K  Rao; Sunil Kumar; A R  Srivastava and M P  Kaushik

doi:10.17485/ijst/2010/v3i2.22

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Polyepichlorohydrin modified quartz crystal microbalance sensor for sulfur mustard vapor detection

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Indian Journal of Science and Technology

DOI: 10.17485/ijst/2010/v3i2.22

Year: 2010, Volume: 3, Issue: 2, Pages: 139-142

Original Article

Polyepichlorohydrin modified quartz crystal microbalance sensor for sulfur mustard vapor detection

Rajendra Bunkar ^*, Ram Asrey, K.D. Vyas, V.K. Rao, Sunil Kumar, A.R. Srivastava and M.P. Kaushik

Defence Research & Development Establishment (DRDE), Jhansi Road, Gwalior, M.P., 474002, India
[email protected]

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

The sulfur mustard (SM) vapor sensitive property of polyepichlorohydrin (PECH) polymer coating was investigated by using quartz crystal microbalance (QCM) sensor. The measurements were based on the frequency shifts (Hz) due to the sorption of SM vapor in the polymer coating of the modified QCM. The response of QCM sensor was found to be about 410 Hz for SM vapors. The influences of coating thickness and temperature on the sensor response were examined. The sensor showed optimum response and reversibility at 4 KHz of coating thickness and lower temperature. The relevant detection parameters like sensitivity, reversibility and reproducibility were evaluated for SM detection.
Keywords: PECH, QCM, sulfur mustard, response, reversibility.