Several modified piezoelectric quartz crystals for determination of omethoate.
Determination of omethoate by modified PQC (piezoelectric quartz crystal) sensor is described. Several modified films were studied and compared. Omethoate of 0.1-10 ppm can be determined directly and sensitively with PVC-dioctyl sebacate film modified PQC. The modified crystal has good reversibility and reproductivity. The lifetime is about 1 month.
Cheng
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Department of Chemistry, Wuhan University, Wuhan 430072, People's Republic of China.
Xianbao
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Wuming
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Xingyao
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