Method for rapidly detecting organic phosphorus pesticide residues through microchannel based on scanning and colorimetric analysis

An organophosphorus, micro-channel technology, applied in the measurement of color/spectral characteristics, etc., can solve the problems of multiple false positive results, only qualitative detection, etc., and achieve the effect of low cost, avoiding the loss of white light energy, and high transparency.

Active Publication Date: 2014-03-26
TAIYUAN UNIV OF TECH
View PDF10 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The specific technical problem to be solved by the present invention is that the existing rapid detection methods for pesticide residues can only detect qualitatively, and there are many false positive results; usi

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for rapidly detecting organic phosphorus pesticide residues through microchannel based on scanning and colorimetric analysis
  • Method for rapidly detecting organic phosphorus pesticide residues through microchannel based on scanning and colorimetric analysis
  • Method for rapidly detecting organic phosphorus pesticide residues through microchannel based on scanning and colorimetric analysis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Specific implementation of the present invention, a microchannel based on scanning colorimetric analysis is used for the rapid detection method of organophosphorus pesticide residues. Taking the detection of malathion pesticide residues as an example, the specific implementation mode of the present invention is further described.

[0033] 1. Template design: Use CAXA software to design the dimensions of the transparent base layer, transparent channel layer, and transparent covering layer. The scanner used in the present invention is a ScanMaker i800 Plus flatbed scanner, so the template design size does not exceed the scanning range of the scanner used. One of the templates is designed as follows: the size of the entire pesticide residue detection microchannel is 25mm×75mm, the thickness of the channel layer is 3mm, and there are 8 strip channels of 4mm×13mm inside. An equilateral triangle sample tank, both of which simultaneously form a transparent microchannel hole. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention relates to a method for rapidly detecting organic phosphorus pesticide residues through a microchannel based on scanning and colorimetric analysis. The method comprises the following steps: preparing the organic phosphorus pesticide residue microchannel; adding a pesticide-residue rapidly-detecting reagent into the organic phosphorus pesticide residue microchannel; scanning to obtain the digital pictures for detecting the organic phosphorus pesticide residue microchannel; conducting colorimetrical analysis on the digital pictures of the microchannel for detecting organic phosphorus pesticide residues. Based on scanning and colorimetric analysis, the microchannel is used for rapidly detecting organic phosphorus pesticide residues. The microchannel has the advantages of multiple-flux detection, reusability and low cost, has high transparency, and greatly increases the precision of detection on organic phosphorus.

Description

technical field [0001] The invention relates to a rapid detection method for organophosphorus pesticide residues in fruits and vegetables, specifically a method for adding polycarbonate (PC) and polydimethylsiloxane (PDMS) to a detection solution for organophosphorus pesticide residues in fruits and vegetables In a multi-flux microchannel made of materials, the digital picture of pesticide residue detection is obtained by scanning, and finally the chromaticity value of the digital picture is analyzed to realize the analysis method of organophosphorus pesticide residue detection. Background technique [0002] Since the beginning of the 21st century, people have paid great attention to food safety issues, especially the pesticide residues in fruits and vegetables directly endanger people's health. Therefore, the Food and Agriculture Organization of the United Nations (FAO) and the World Health Organization (WHO) have put forward higher requirements for the detection of pestici...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N21/25
Inventor 李晓春孟雪娟崔彩娥于化忠
Owner TAIYUAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap