Preparation of an Electropolymerized Molecularly Imprinted Polymer Hollow Channel Paper Device and Its Application in Instant Detection of Pesticide Residues

A molecular imprinting and polymer technology, applied in the construction of paper analysis devices, can solve the problems of slow liquid flow, loss of solution volatilization, and inability to move freely, so as to reduce the preparation cost, reduce the detection time, and improve the repeatability. Effect

Inactive Publication Date: 2016-11-02
UNIV OF JINAN
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Problems solved by technology

But at present, the microfluidic paper chip laboratory still promotes the liquid flow through the capillary force of the porous paper fiber. Therefore, the flow speed of the liquid is slow and takes a long time. Bacteria and microbeads cannot move freely in paper fibers

Method used

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  • Preparation of an Electropolymerized Molecularly Imprinted Polymer Hollow Channel Paper Device and Its Application in Instant Detection of Pesticide Residues
  • Preparation of an Electropolymerized Molecularly Imprinted Polymer Hollow Channel Paper Device and Its Application in Instant Detection of Pesticide Residues

Examples

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Embodiment

[0036] Example: （ Organophosphates, such as omethoate)

[0037] A method for preparing an electropolymerization molecularly imprinted polymer hollow channel paper device for detecting omethoate, comprising the following steps:

[0038] (1) Use Adobe Illustrator CS4 software on the computer to design the hydrophobic pattern of the top filter paper, including the entrance (diameter 4mm), detection area (diameter 4mm) and exit (diameter 4mm), the distance between the entrance and the detection area is 20mm, and the distance between the entrance and the exit is 30mm. The hydrophobic pattern of the hollow channel layer filter paper includes an inlet (diameter 4mm), a hollow channel (width 2mm) and an outlet (diameter 4mm), and the distance between the inlet and the outlet is 30mm. The hydrophobic pattern of the bottom filter paper includes an inlet (diameter 4mm), a hydrophilic channel (width 2mm) and outlet (diameter 4mm), the distance between inlet and outlet is 30mm;

[0039](...

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Abstract

The invention discloses the preparation of an electropolymerized molecularly imprinted polymer hollow channel paper device and its application in instant detection of pesticide residues. Use Adobe Illustrator CS4 software on the computer to design wax printing patterns and hollow channel cutting patterns; use wax printers to print hydrophobic areas; use laser cutters to cut inlets, outlets, and hollow channels; print carbon work on the working area by screen printing technology Electrode, carbon counter electrode and Ag / AgCl reference electrode; electropolymerization molecularly imprinted polymer by cyclic voltammetry on the working electrode; according to a certain order, the prepared filter paper is stacked and sandwiched between the glass slides to prepare the electropolymerization molecule The polymer hollow channel paper device is imprinted, and the electrodes in the device are connected to the electrochemical workstation for instant detection of pesticide residues.

Description

technical field [0001] The invention relates to the technical field of rapid, low-cost and high-selection detection of pesticide residues, and more specifically relates to the construction of a paper analysis device suitable for on-site instant detection. Background technique [0002] Acute poisoning incidents caused by food contamination have been reported frequently in recent years, but the physiological changes caused by the chronic harm of pesticides to the human body are often easily overlooked because there are no obvious symptoms. Some pesticide varieties have cumulative toxicity, and even produce three toxicities: carcinogenic, teratogenic, and mutagenic. With the improvement of people's knowledge and living standards, people pay more and more attention to the methods and technologies of pesticide content determination in food. At the same time, as my country's international trade develops more frequently, the world Each country has higher and higher requirements for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/26G01N27/48
Inventor 葛慎光于京华颜梅黄加栋张彦刘海云王衍虎
Owner UNIV OF JINAN
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