Preparing method for sensor for detecting organophosphorus pesticide residues

An organophosphorus pesticide and sensor technology, which is applied in the direction of chemiluminescence/bioluminescence, analysis by chemical reaction of materials, etc. It can solve the problem that multi-functional electrochemical and chemiluminescence analyzers are expensive and cannot meet the actual detection and detection costs. Advanced problems, to achieve the effect of reducing detection cost, simple preparation method and simple preparation

Inactive Publication Date: 2017-01-11
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the cumbersome pre-treatment, expensive equipment, and high detection costs, these methods are difficult to popularize in the analysis and testing laboratories at the grassroots level.
There are literature reports on the detection of organophosphorus pesticides using electrochemiluminescence technology. However, the multifunctional electrochemical and chemiluminescence analyzers used in this article are expensive and cannot meet the needs of actual detection.

Method used

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  • Preparing method for sensor for detecting organophosphorus pesticide residues
  • Preparing method for sensor for detecting organophosphorus pesticide residues

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1. A preparation method of an electrochemiluminescent sensor for detecting methyl parathion pesticide residues

[0025] (1) Use CorelDRAW Graphics Suite X6, Adobe Photoshop CS6 or Adobe Illustrator CS6 software to design such as figure 1 The paper battery pattern shown, the paper battery pattern includes filling area, salt bridge area, electrolyte area, battery area and connection line area.

[0026] (2) Cut the filter paper into A4 size, print the pattern designed in step (1) onto the cut filter paper with a solid wax printer, and then place the printed filter paper in an oven at 90°C for heat treatment 3 min to allow the patterned wax to melt and form the hydrophobic dams.

[0027] (3) Use a puncher or a laser cutter to drill a hole in the center of the filling area, and the diameter of the hole is 1 mm smaller than the diameter of the reserved hydrophilic area; add 1.0 M NaCl solution or KCl solution to the salt bridge area; 0.9 MCu(NO 3 ) 2 solution and ...

Embodiment 2

[0035] Example 2. A preparation method of an electrochemiluminescent sensor for detecting demeton pesticide residues

[0036] Preparation steps are the same as example 1, the difference is:

[0037]The diameter of the filling area of ​​the paper battery described in step (1) is 5 mm; the width of the salt bridge area is 5 mm and the length is 12 mm; the diameter of the electrolyte area is 5 mm; the diameter of the battery area is 5 mm; is 5mm.

[0038] The self-made chip clip described in step (3) includes 2 pieces, one of which has a hole in the middle of the chip, and the size of the hole is the same as the size of the hole in the filling area; the other chip clip has a conductive aluminum circuit, which can be connected to The current drawn on.

[0039] The organophosphorus pesticide in step (5) is demeton pesticide.

Embodiment 3

[0040] Example 3. A preparation method of an electrochemiluminescent sensor for detecting malathion pesticide residues

[0041] Preparation steps are the same as example 1, the difference is:

[0042] The diameter of the filling area of ​​the paper battery described in step (1) is 6 mm; the width of the salt bridge area is 8 mm and the length is 16 mm; the diameter of the electrolyte area is 8.0 mm; the diameter of the battery area is 8 mm; is 8mm.

[0043] The self-made chip clip described in step (3) includes 2 pieces, one of which has a hole in the middle of the chip, and the size of the hole is the same as the size of the hole in the filling area; the other chip clip has a conductive aluminum circuit, which can be connected to The current drawn on.

[0044] The organophosphorus pesticide in step (5) is malathion pesticide.

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Abstract

The invention discloses a preparing method for an electrogenerated chemiluminescence sensor for detecting organophosphorus pesticide residues with a paper battery as power. The preparing process of the paper battery includes the steps that hydrophobic wax patterns are designed and printed as shown in the drawings; a filling area, a salt bridge area, an electrolyte area, a battery area and a connecting line area are established; the paper battery is assembled. The preparing process of the electrogenerated chemiluminescence sensor for detecting organophosphorus pesticide residues includes the steps of electrode pretreating, electrode modifying and detecting. The sensor is simple in preparing method, the paper battery serves as power, the cost is low, and the electrogenerated chemiluminescence sensor is of great significance in detecting organophosphorus pesticide residues in subsidiary agricultural products.

Description

technical field [0001] The invention relates to the technical field of detection of pesticide residues, in particular to the preparation of an electrochemiluminescent sensor powered by a paper battery for detecting organophosphorus pesticide residues. Background technique [0002] In order to effectively prevent and control diseases, insects, weeds and other harmful organisms that cause harm to agricultural and forestry production, highly toxic organophosphorus pesticides are widely used. To a certain extent, organophosphorus pesticides have effectively controlled the problems of crop diseases and insect pests, and brought obvious growth to social and economic benefits. However, while ensuring a substantial increase in crop production, the adverse side effects of the use of organophosphorus pesticides have become increasingly prominent. After the application of organophosphorus pesticides, some of them are attached to the surface of plants or infiltrated into plants, pollut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/76
CPCG01N21/76
Inventor 张彦张丽娜李丽杨红梅葛慎光于京华颜梅
Owner UNIV OF JINAN
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