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Method for using paper-based micro-fluidic chip for multi-channel detection

A multi-channel detection and microfluidic chip technology, which is applied to laboratory containers, chemical instruments and methods, and analysis by making materials undergo chemical reactions, can solve the problems that are not easy to carry, cannot meet the requirements of continuous monitoring of petroleum wastewater, on-site Measurement, expensive and other issues, to achieve the effect of good timing, flexible and changeable chip operation

Pending Publication Date: 2018-12-28
CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

Due to the high price, high operation cost, and inconvenient portability of traditional methods for detecting heavy metals, they cannot meet the requirements of continuous monitoring and on-site determination of petroleum wastewater.

Method used

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  • Method for using paper-based micro-fluidic chip for multi-channel detection
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  • Method for using paper-based micro-fluidic chip for multi-channel detection

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Embodiment Construction

[0029] refer to Figure 1 to Figure 11 In the shape structure, a method for using a paper-based microfluidic chip for multi-channel detection, the chip used is composed of a first layer 11, a second layer 12 and a third layer 13 paper substrate and a bottom support substrate 26 . The chip is circular or rectangular, and is pasted together by three layers of superhydrophobic treated paper substrates with the same shape and size.

[0030]The first layer 11 is processed on the first layer of paper substrate according to the different specifications of the chip, and the chromogenic pool 1, the gradient channel 2, the reaction pool 3, the reagent channel 4, and the reagent port are processed through the upper and lower thickness of the paper substrate. 5. The shape and size of the sample port 6, the filter tank 7, the split pool 8, the split channel 9, and the filtrate mutual channel 14. The sample port 6 is set at the center of the chip, and the sample port 6 is connected to mor...

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Abstract

The invention provides a method for using a paper-based micro-fluidic chip for multi-channel detection, wherein the using method comprises the following steps: chip preparation: according to the typeand quantity of heavy metal ions to be tested, detecting one metal ion, simultaneously detecting at least two samples, using two standard samples as a control group, and selecting chips having four ormore chrominance cell specifications; then adding a sample solution to be tested; adding a reagent; and finally performing the colorimetric comparison test. The method for using a paper-based micro-fluidic chip for multi-channel detection has the beneficial effects that the chip selection and the chip operation are flexible and adaptable, which is suitable for the determination of various heavy metal ions in different situations, and is capable of realizing continuous, real-time and rapid experimental requirements for on-site measurement.

Description

technical field [0001] The invention relates to a method for using a paper-based microfluidic chip for rapidly detecting the concentration of heavy metal ions in petroleum wastewater by using a multi-channel colorimetric method. technical background [0002] With the development of social economy, the social environment is getting more and more polluted. Petroleum wastewater is one of the pollution sources in today's society. Petroleum wastewater contains a large amount of toxic and harmful substances such as oil substances and heavy metals, which will cause harm to the environment and human health. At present, the detection of heavy metal ions in petroleum wastewater has attracted extensive attention. Therefore, researchers have invented various methods to detect heavy metal ions. Due to the high price, high operation cost, and inconvenient portability of traditional methods for detecting heavy metals, they cannot meet the requirements of continuous monitoring and on-site...

Claims

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Application Information

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IPC IPC(8): G01N35/00G01N35/10B01L3/00C02F1/00C02F1/28C02F101/20C02F101/32
CPCG01N21/78G01N35/00G01N35/10G01N35/1065C02F1/00C02F1/001C02F1/28B01L3/5027B01L3/502707C02F2101/20C02F2101/32C02F2101/322B01L2300/0681B01L2300/12B01L2300/0861B01L2200/0631B01L2300/1877G01N2035/00237G01N2035/1034Y02A50/30
Inventor 徐文峰廖晓玲黄秋红游小双
Owner CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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