基于酶传感器的农药浓度便携式实时测量装置  

Portable and Real-time Device for Measuring Concentration of Pesticides Used with Enzyme Sensing Electrode

作　　者：陈志刚[1,2] 张启甲[1] 邱白晶[1] 王坤[1] 吴春笃[3] 

机构地区：[1]江苏大学现代农业装备与技术省部共建教育部重点实验室,镇江212013 [2]江苏大学环境学院,镇江212013 [3]扬州环境资源职业技术学院,扬州225127

出　　处：《农业机械学报》2011年第11期178-182,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家高技术研究发展计划(863计划)资助项目(2008AA100905;2006AA10A305-3);江苏省属高校自然科学重大基础研究项目(10KJA470007)

摘　　要：设计了一种应用酶传感器的便携式农药浓度测量装置,由丝网印刷酶电极、信号调理电路和单片机C8051F040组成。酶传感电极修饰方法使涂层电荷转移电阻减小而加速电荷转移。装置检测出酶抑制率与农药(西维因)浓度的对数在农药(西维因)质量浓度为5 ng/mL～2μg/mL时呈线性关系,最低检出限为1.7 ng/mL,检出时间小于161 s,系统尺寸小,可采用电池供电,为数量级μg/L的农药质量浓度现场检测(如农药喷雾现场)提供了一种便携式快速测量装置。A kind of portable device for measuring concentration of pesticides used with enzyme sensor was designed.It included screen-printed enzyme electrode,signal conditioning circuit and MCU C8051F040.The preparation of enzyme electrode made the coated resistance of charge transfer reduced,charge transfer accelerated;and a reliable liner relationship between the inhibition of enzyme and log [carbaryl] was obtained from 5ng/mL to 2μg/mL,with the detection limitation of 1.7ng/mL.Response time of the device was less than 161s.The size of the device was small and the power was supported by battery.It provided a portable device for rapid measuring and spotty concentration of pesticide in μg/L level.

关 键 词：农药浓度 酶传感器 测量装置 

分 类 号：S237[农业科学—农业机械化工程] S481.8[农业科学—农业工程]