Electrochemical and optoelectronic integrated chip for monitoring heavy metal and wireless buoy sensing system

Abstract

The invention discloses an electrochemical and optoelectronic integrated chip for monitoring heavy metal and a wireless buoy sensing system. An electrochemical sensor, a light-addressable potentiometric sensor and a counter electrode array are integrated on a same chip, so that the microminiaturization and the integration of the sensor are achieved, and meanwhile, the data fusion and the calibration of different sensors are introduced, so that the detection accuracy and the anti-jamming capability of the integrated chip are improved. The wireless buoy sensing system comprises a buoy for carrying, a heavy metal detecting instrument fixed inside the buoy for carrying; the heavy metal detecting instrument comprises the electrochemical and optoelectronic integrated chip, a reference electrode, a pump valve waterway module, a signal collection circuit, a light source modulation circuit, an ARM control panel, a test cavity and an excitation light source. Thus, the automatic sampling, the discharging, the automatic detection and the data uploading in the system are achieved, the on-line and real-time monitoring on the heavy metal in lake water is achieved, and the electrochemical and optoelectronic integrated chip for monitoring the heavy metal has a great application prospect.

Description

technical field [0001] The invention relates to the fields of chemical sensors and biosensors, in particular to an electrochemical and photoelectric integrated chip for heavy metal monitoring and a wireless buoy sensing system. Background technique [0002] Heavy metals enter the water body mainly through various man-made pollution methods such as mining, metal extraction and processing, chemical production, pesticide and chemical fertilizer use, and domestic garbage. , Seriously endangering the ecological environment and human health, it is urgent to establish a real-time monitoring system for heavy metals in the water environment. So far, few domestic environmental monitoring centers have monitored changes in heavy metal content in water bodies. [0003] Atomic absorption spectroscopy (AAS) and inductively-coupled plasma mass spectrometry (Inductively-coupled plasma mass spectroscopy, ICP-MS) are the main methods commonly used in the detection of heavy metals. It is usua...

AI Technical Summary

Problems solved by technology

In the research of heavy metal detection by microelectrode arrays, researchers at home and abroad are usually limited to laboratory analysis and research, and cannot be applied to actual detection on site.

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