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Study on the Surface Acoustic Wave Sensor with Self-Assembly Imprinted Film of Calixarene Derivatives to Detect Organophosphorus Compounds
Research Institute of Chemical Defence, Beijing, China
Research Institute of Chemical Defence, Beijing, China
Research Institute of Chemical Defence, Beijing, China
- 1 Research Institute of Chemical Defence, Beijing, China
- 2 Research Institute of Chemical Defence, Beijing, China
- 3 Research Institute of Chemical Defence, Beijing, China
American Journal of Analytical Chemistry·Volume 03 (2012)·Pages 664–668·Published 30 August 2012·DOI10.4236/ajac.2012.39087
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Abstract
The molecularly imprinted technology and the self-assembly technique were used together on the calixarene surface acoustic wave (SAW) chemical sensors to detect organophosphorus compounds. 25-(thioalkyl-alkoxy)- p -tertbutylcalix[4] arene with self-assembled monolayer character was the sensitive coating of the sensors. The sensors had a special response to organophosphorus compounds and the response frequency shift of this sensor to organophosphorus compounds in 0.1 mg/m 3 was 350 Hz. The response frequency increased linearly with the increase of the concentration of DMMP in the range from 0.1 to 0.6 mg/m 3 . The possible explanation of the interaction between the coatings and organophosphorus compounds was discussed.
KeywordsCalixareneSelf-AssemblyMolecular ImprintedSAW SensorDMMPDetection
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