Design and Test of Portable Potentiostat Detecting for Pesticide Residue in the Atmosphere of Greenhouse

In order to rapidly measure the residue of pesticide reside in the atmosphere of greenhouse, this paper proposes a scheme about the portable Potentiostat based on C8051F020 chip. It could magnify weak current signal to voltage signal which could identified. To test the performance of the instrument, a testing was carried out using a circuit model which is equivalent to the three electrode electrochemical sensor. The experimental result shows that the instrument has good accuracy.