Rapid Detection of Pesticide Residues in Vegetables with Mini-colorimeter

摘要：

This paper describes a rapid pesticide residues detection method for vegetable samples or water samples based on a mini-colorimeter. The sensors responding signal and condition circuit of the minicolorimeter are composed of emitting diodes, photodiode receivers and integrated circuit amplifiers. Single chip microprocessor is the core of the system. The concentration(PM) of pesticides is displayed by 4 nixietubes. A neural network mathematic model is established to calculate the residual concentration of the pesticides. The neural network weigh matrixes are trained with supervised samples of 0-6 PPM omethoate and Chlorsalicylamide. The pesticide residues are detected for greengrocery samples. Using this meter, it takes one minute to measure the organophosphates pesticide residues in a greengrocery sample or Chlorsalicylamide in water sample. This meter can be used in other pesticides detection with the help of suitable chromogeniC agents.

关键词： pesticide residues photoelectric diode neural network mini-colorimeter

作者: Wang Changlong Zhang Shengwei Yuan Ting Shen Maosong

作者单位: Mechanical Institute,Yangzhou University,Jiangsu Yangzhou 225009,China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 4210-4213

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）