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.
Highlights
The Analysis of air contaminants is very essential to meet industrial hygiene and government pollution standards
Various methods are reported in literature for detection of nerve agents and their simulants but no report is available for detection of organosulfur compounds by quartz crystal microbalance (QCM) sensor
The polymers offer a great advantage as sorbent coatings for detection of volatile organic compounds (VOC’s) by using QCM sensors because apart from stable film they provide specific interactions with particular analyte (Adhikari & Majumdar, 2004)
Summary
The Analysis of air contaminants is very essential to meet industrial hygiene and government pollution standards. The polymers offer a great advantage as sorbent coatings for detection of volatile organic compounds (VOC’s) by using QCM sensors because apart from stable film they provide specific interactions with particular analyte (Adhikari & Majumdar, 2004). The time dependent frequency shifts of sensor was recorded upon exposure of SM vapor in each response cycle.
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