Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Domestic pesticide residue detecting instrument and method

A pesticide residue detection and pesticide residue technology, which is applied to instruments, analyzes materials by chemical reaction, and analyzes materials by observing the influence of chemical indicators. Heating time and other problems can be solved to solve food safety doubts, shorten reaction time and increase active units.

Inactive Publication Date: 2016-10-26
愉百家(北京)商贸股份有限公司
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages are: 1. The operation is complicated and not suitable for public operation; 2. The storage of cholinesterase powder is difficult
However, it is difficult to maintain cold chain transportation and storage of test strips, whether in the process of transportation or in the process of household use.
Therefore, enzyme powder will often have actual effects, causing false positives in measurement
3. It is required to press by hand for 10 minutes, which is difficult to do
4. Color recognition is difficult
Disadvantages: 1. Because cholinesterase powder is still used, it is necessary to wet the white powder (cholinesterase) and observe it for 5 minutes before measurement; 2. There is still a decrease in the enzyme activity of cholinesterase caused by storage at room temperature, Or inactivation problem; 3. It is still necessary to observe the color with the naked eye, which is not suitable for home use; 4. The operation of the equipment is complicated, it needs to be preheated, and the heating time needs to be set; 5. The price of the instrument is relatively expensive compared to home use

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
  • Domestic pesticide residue detecting instrument and method
  • Domestic pesticide residue detecting instrument and method
  • Domestic pesticide residue detecting instrument and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] figure 1 It is a schematic structural diagram of a household pesticide residue detector in an embodiment of the present invention, including a pesticide residue detection component 300, a heating component 400, a controller 100, and a detection and analysis component 200;

[0043] The pesticide residue detection component 300 includes a cholinesterase layer 301 and a color-developing layer 302. The cholinesterase layer 301 is provided with a capsule body and a cholinesterase liquid in the capsule body, and the capsule body is made of sodium alginate. A color developing agent is provided on the color developing layer 302, and the color developing agent is specifically indophenol acetate.

[0044] Specifically, the fronts of the cholinesterase layer 301 and the color-developing layer 302 are placed in contact with each other, and are detachable for replacement, and the cholinesterase layer 301 and the color-developing layer 302 are fixed on the heating plate of the heatin...

Embodiment 2

[0055] In this embodiment, it is further defined that the heating plate 401 of the heating assembly 400 is a resistance heating plate,

[0056] The heating plate in most pesticide detectors uses nickel complex alloy heating wire to form a heating plate, but this experimental device uses a resistance plate to form a heating plate, and the heating plate uses chip resistors to be welded on a printed board by SMT process. . The use of a resistive heating plate for heating ensures rapid heating and no preheating is required for detection applications, which can improve reaction time and reduce costs at the same time.

[0057] The heating plate is made of chip resistors welded by SMT process, which can easily realize the adjustment of output power and greatly shorten the preheating time. The use of SMT processing technology can ensure the quality and stability of the product, and also reduce the cost .

Embodiment 3

[0059] The following further describes the first experiment and the second experiment of the present invention in detail to better support the technical solution of the present invention.

[0060] National standard NY / T761-2008 detection limit: malathion 0.03mg / kg, parathion 0.02mg / kg, methyl parathion 0.02mg / kg, dichlorvos 0.01mg / kg, dimethoate 0.02mg / kg.

[0061] Experimental supplies:

[0062] 1. Standard organophosphorus pesticides (Chinese Academy of Environmental Sciences, malathion 100 μg / ml, parathion 101 μg / ml, methyl parathion 101 μg / ml, dichlorvos 104 μg / ml, dimethoate 55.1 μg / ml) .

[0063] 2. Acetylcholinesterase (fly head), 200u / g protein 250mg (Shanghai Yuanye Biology); Acetylcholinesterase (electric eel) 500u / g protein 250mg (Shanghai Yuanye Biology); Serum) 1000u / gprotein 250mg (Shanghai Yuanye Biology).

[0064] 3. Three brands of rapid pesticide residue test strips.

[0065] 4. Water bath (Changzhou Guohua), incubator (Shanghai Boxun).

[0066] Experime...

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

No PUM Login to View More

Abstract

The invention discloses a domestic pesticide residue detecting instrument and method, and the detecting instrument comprises a pesticide residue detection component, a heating component, a controller and a detection analysis component; the pesticide residue detection component comprises an acetylcholinesterase layer and a color developing layer, the acetylcholinesterase layer is provided with an encapsulation and acetylcholinesterase liquid in the encapsulation, the encapsulation is made with sodium alginate, the color developing layer is provided with a developer, the detection analysis component comprises an image acquisition unit and a color recognition unit, an input end of the image acquisition unit is connected with the color developing layer of the pesticide residue detection component, an output end of the image acquisition unit is connected with the color recognition unit, and an output end of the color recognition unit is connected with a signal acquisition end of the controller; a heating plate is a resistive heating plate; it is possible to solve the public concern on food safety, the detecting method is safe and reliable, is simple to perform and is suitable for any user.

Description

technical field [0001] The invention relates to the technical field of pesticide detection, in particular to a household pesticide residue detector and a detection method. Background technique [0002] With the development of the economy, food safety issues have been receiving much attention in recent years. Food safety refers to food that is non-toxic and harmless, meets proper nutritional requirements, and does not cause any acute, subacute or chronic harm to human health. According to the definition of food safety by Benoy, food safety is "the public health problem that poisonous and harmful substances in food affect human health". Food safety is also an interdisciplinary field that focuses on ensuring food hygiene and food safety in the process of food processing, storage, and sales, reducing hidden dangers of disease, and preventing food poisoning, so food safety is very important. Food (food) planting, breeding, processing, packaging, storage, transportation, sales, ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
CPCG01N21/78G01N2201/0231
Inventor 徐翔陈绩
Owner 愉百家(北京)商贸股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com