A preparation method of microfluidic chip for multi-parameter detection of water body

A microfluidic chip, multi-parameter technology, applied in laboratory containers, chemical instruments and methods, testing organic pollutants in water, etc., can solve the problems of no device/manufacturing method, etc., to improve portability, Effects of reduced size and simple manufacturing process

Active Publication Date: 2022-03-01
UNIV OF SCI & TECH OF CHINA
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However, there is currently no report on a related device / manufacturing method carrying this technology

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  • A preparation method of microfluidic chip for multi-parameter detection of water body
  • A preparation method of microfluidic chip for multi-parameter detection of water body
  • A preparation method of microfluidic chip for multi-parameter detection of water body

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[0052] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments.

[0053] The preparation method of the microfluidic chip used for multi-parameter detection of water body of the present invention adopts ultraviolet lithography and gold plating technology, and its conductivity is stronger than that of copper made of PCB. The hole is plugged into a small device that can be controlled to expand and contract, and the protrusion of the microchannel is used as the switching valve of the microchannel, which has a significant advantage of volume and portability.

[0054] Such as figure 1 As shown, the preparation method of ...

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Abstract

A method for preparing a microfluidic chip for multi-parameter detection of water body according to the present invention comprises the following steps, S100, making the underlying structure, that is, the substrate; S200, making the microchannel structure; S300, making the insulating layer structure; S400, making the microchannel Structure, insulating layer structure and microvalve device are respectively assembled on the underlying structure; wherein, the S100 includes the installation position of the manufacturing valve, and wet etching drilling is carried out at the position corresponding to the valve structure, in order to facilitate the fixing of the valve body , additionally take a piece of glass block with the same height as the valve body after shrinkage, and use CNC drilling to obtain the installation hole position of the valve body; the S300 includes manufacturing an insulating layer structure with a raised structure as a part of the valve body. The preparation method of the invention can realize the preparation of a multi-layer microfluidic chip, which has an electrode layer, an insulating layer, and a channel layer, and the channel layer contains optical fibers and protrusion structures. The preparation process of the method is simple and the cost is low.

Description

technical field [0001] The invention relates to the technical field of environmental detection, in particular to a preparation method of a microfluidic chip used for multi-parameter detection of water bodies. Background technique [0002] Microfluidic technology refers to the controlled delivery of trace liquids by constructing micron-scale microchannels, which has the advantages of less sample demand, fast mass transfer speed, small size, easy portability, and easy integration with electrical and optical detection methods. The material cost of microchips manufactured by microfluidic technology is extremely low, and micro-reaction reagents can be packaged in advance, and the materials and micro-reagents have no secondary pollution to the environment. [0003] In recent years, with the rapid development of microfluidic technology, the combination of microfluidic technology and optical and electrical detection technology is expected to realize the rapid detection of multi-para...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01L3/00G01N33/18G01N35/00
CPCB01L3/502707G01N33/18G01N33/1826G01N35/00B01L2200/10G01N2035/00158
Inventor 田扬超刘刚熊瑛
Owner UNIV OF SCI & TECH OF CHINA
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