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实验考察了6种合成的杯芳烃化合物涂层的厚度剪切模式(TSM)声波传感器对30多种有机蒸气的频移响应情况,发现37,38,39,40,41,42-六(乙氧基羰基甲氧基)杯[6]芳烃对苯甲醚分子具有灵敏的主-客识别功能。当涂载量为43μg时,传感器的线性响应范围可达0.016~25.406mg/L,灵敏度为43.8Hz/(mg·L-1)(30℃±0.5℃),检测下限可达0.007mg/L。传感器具有重现性和稳定性好、响应较快的优点,羧酸和含苯环类化合物对传感器有一定干扰,而湿度不干扰。将该传感器用于苯甲醚样品的测定,测量精度与气相色谱法相当,回收率为97.52%~104.37%。
The frequency response of 30 kinds of organic vapors of the thickness-shear mode (TSM) acoustic wave sensors coated with six kinds of synthetic calixarene compounds was investigated experimentally. It was found that 37, 38, 39, 40, 41, 42- Oxycarbonylmethoxy) calix [6] arene has a sensitive host-guest recognition function for anisole molecules. The linear response of the sensor ranged from 0.016 to 25.406 mg / L and the sensitivity was 43.8 Hz / (mg · L -1) (30 ℃ ± 0.5 ℃) when the coating volume was 43 μg. The detection limit Up to 0.007mg / L. The sensor has the advantages of reproducibility and stability, fast response, carboxylic acid and benzene containing compounds have some interference to the sensor, and humidity does not interfere. The sensor was used for the determination of anisole samples, the measurement accuracy was the same as that of gas chromatography, the recovery was 97.52% ~ 104.37%.