Device and method for rapidly detecting multiple parameters of water body

Abstract

The invention discloses a device and a method for rapidly detecting multiple parameters of a water body. The device comprises a micro-fluidic chip module, which comprises a dielectrophoresis bacterium sorting chip module, an impedance bacterium testing chip module, an extraction fluorescence testing chip module and an electrophoresis ion chip module; wherein the micro-fluidic chip module is provided with four inlets, the inlet I is used as a sample inlet, and the inlet II, the inlet III and the inlet IV are respectively used as a buffer solution inlet I, a buffer solution inlet II and a buffer solution inlet III. According to the device, the micro-fluidic technology is adopted, accurate flow direction control over liquid is achieved through the micro-channels and the micro-valves, a plurality of pretreatment and detection modules are highly integrated on a small plastic sheet, and the device has high integration level and efficient mass transfer and detection speed. The whole device has the advantages of high portability, high detection speed and high timeliness. In the invention, a plurality of modules are integrated on the same chip, joint detection of multiple parameters is realized, and only one sample needs to be input, so that the detection accuracy is higher.

Description

technical field [0001] The invention relates to the technical field of environmental detection, in particular to a multi-parameter rapid detection device and detection method for water bodies. Background technique [0002] my country's rivers, lakes, seas and other water areas are vast, and the quality of water bodies has an important impact on people's production and life. Water quality testing is the first step in measuring water bodies. At present, there are two types of methods for the determination of traditional water quality. One method is to collect water samples on site and bring them back to the analysis and testing laboratory for laboratory analysis in a short period of time. Traditional laboratory chemistry such as atomic absorption method and ultraviolet colorimetry are mainly used. Although the determination method has high precision, the process is cumbersome and requires a lot of manpower, material resources and financial resources. Another method is to est...

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