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中文摘要：
神经性毒剂是化学战剂的重要分支．为了检测神经性毒剂模拟剂甲基膦酸二甲酯（DMMP），使用毛细管在压电石英晶体（QCM）的电极上滴涂上不同质量的聚偏氟乙烯（PVDF）溶液，干燥后作为敏感膜．室温下测试QCM对不同浓度的DMMP的响应情况，发现QCM的频率变化与气体浓度有着良好的线性关系．该实验结果表明，PVDF可以作为检测DMMP的很好的敏感材料．
英文摘要：
A novel quartz crystal microbalance （QCM） sensor prepared by dip-coating method using poly （vinylidene fluoride） （PVDF） solution with various concentrations to form sensitive layer on the electrode of QCM was investigated. The sensitive property of QCM sensor for dimethyl methylphosphonate （DMMP） as a nerve reagent simulant was characterized. It shows that the frequency of QCM changed when the electrode was exposed to DMMP gas, and there is a linear correlation between frequency change of QCM sensor and DMMP concentration. This result indicates that PVDF is a promising sensitive material for chemical warfare agent detection at room temperature.
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