oa South African Journal of Chemistry - Detection of Sarin with a Fluorinated Polymer-coated Quartz Crystal Microbalance Sensor
|Article Title||Detection of Sarin with a Fluorinated Polymer-coated Quartz Crystal Microbalance Sensor|
|© Publisher:||South African Chemical Institute (SACI)|
|Journal||South African Journal of Chemistry|
|Author||Boli Zuo, Wei Li, Tian Zhang, Hongxing Zhang and Guohong Liu|
|Publication Date||Jan 2007|
|Pages||118 - 124|
|Keyword(s)||Fluorinated polymer and QCM sensor|
A quartz crystal microbalance (QCM) modified with a thin layer of fluorinated polymer was utilized to determine sarin. Determination was based on the frequency shifts due to the adsorption and desorption of the compound at the surface of a modified quartz crystal electrode. Fluorosiloxane was synthesized and deposited onto the surface of the sensor. The frequency shifts were linearly dependent on the concentration of sarin within the concentration range of 0.42 ppm to 3.85 ppm. Good selectivity and sensitivity for sarin were obtained with the sensor. The detection limit was 0.15 ppm.
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