Chen Daqi, Sun Xiyang, Zhang Kaihuan, Fan Guokang, Wang You, Li Guang, Hu Ruifen
State Key Laboratory of Industrial Control Technology, Institute of Cyber Systems and Control, Zhejiang University, Hangzhou 310027, China.
School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China.
Sensors (Basel). 2017 Jul 21;17(7):1681. doi: 10.3390/s17071681.
Dibutyl phthalate (DBP) is a widely used plasticizer which has been found to be a reproductive and developmental toxicant and ubiquitously existing in the air. A highly sensitive method for DBP monitoring in the environment is urgently needed. A DBP sensor based on a homemade wireless-electrodeless quartz crystal microbalance with dissipation (QCM-D) coated with nano-structured nickel hydroxide is presented. With the noncontact configuration, the sensing system could work at a higher resonance frequency (the 3rd overtone) and the response of the system was even more stable compared with a conventional quartz crystal microbalance (QCM). The sensor achieved a sensitivity of 7.3 Hz/ppb to DBP in a concentration range of 0.4-40 ppb and an ultra-low detection limit of 0.4 ppb of DBP has also been achieved.
邻苯二甲酸二丁酯（DBP）是一种广泛使用的增塑剂，已被发现是一种生殖和发育毒物，且在空气中普遍存在。迫切需要一种用于环境中DBP监测的高灵敏度方法。本文提出了一种基于自制的带有耗散功能的无线无电极石英晶体微天平（QCM-D）的DBP传感器，该传感器涂覆有纳米结构的氢氧化镍。由于采用非接触式配置，传感系统可以在更高的共振频率（第三泛音）下工作，并且与传统石英晶体微天平（QCM）相比，系统的响应更加稳定。该传感器在0.4 - 40 ppb的浓度范围内对DBP的灵敏度达到7.3 Hz/ppb，并且还实现了0.4 ppb的超低检测限。
