Rapid domestic fruit and vegetable pesticide residue detection instrument

A pesticide residue and detector technology, applied in the field of pesticide testing, can solve the problems of testing flexibility and time utilization rate reduction, etc.

Active Publication Date: 2014-01-22
SHANDONG UNIV OF TECH
View PDF3 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] At present, when using the acetylcholinesterase sensor to detect pesticide residues, the general detection method is to directly transmit the signal output by the acetylcholinesterase sensor to the large-scale electrochemical workstation in the laboratory or detection center, which greatly improves the flexibility of the test and the utilization of time.

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
  • Rapid domestic fruit and vegetable pesticide residue detection instrument
  • Rapid domestic fruit and vegetable pesticide residue detection instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The technical solution of the invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] Firstly, explain the schematic block diagram of the structure of the present invention; secondly, describe in detail the potentiostat circuit, three-electrode system current / voltage conversion detection circuit and filter circuit included in the detection circuit; finally, the application software and detection of the whole system The process is explained.

[0020] figure 1 It is a structural block diagram of a rapid detection instrument for household fruit and vegetable pesticide residues of the present invention, as figure 1 As shown, the present invention is composed of a micro-current detection circuit, an amplification and filtering circuit, a digital / analog circuit, a display screen and a minimum system of a microcontroller; wherein the detection circuit is composed of a power supply circuit, a three-electrode syste...

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 rapid domestic fruit and vegetable pesticide residue detection instrument, and relates to the technical field of agriculture product detection. Organophosphorus and carbamate pesticide residues in vegetables and fruits can be detected on site. The instrument consists of a detection panel, a detection instrument body and an enzyme biologic sensor, and further comprises a pocket with a reagent prepared at a certain ratio and an enzyme membrane for fixing acetylcholin esterase. According to the detection principle, on the basis of a cyclic voltammetry method, the concentration of the pesticide is measured by measuring the change of current generated from an electrode which is modified by acetylcholin esterase before and after contacting the pesticide. Weak current signals generated from an enzyme electrode are acquired, amplified and converted through an amplifier, and output to a data processing device, a display and a mini printer are arranged at a data acquisition terminal, whether the pesticide exceeds the standard or not can be displayed, and the result can be printed and output. The instrument is applicable to an occasion for on-site rapid detection on pesticide residues.

Description

technical field [0001] The present invention relates to the technical field related to rapid detection of organophosphorus and carbamate pesticides in fruits and vegetables and the technical field of trace detection; the principle involved is a pesticide residue detector based on the principle of an enzyme sensor, and the biosensor detection method is simple, fast and specific. The advantages of strong sex and the intuitiveness of electronic technology are combined, and it is developed after further research on my country's national conditions and market needs. The purpose is to quickly detect the pesticide residues in the tested samples, which belongs to the category of pesticide detection technology. Background technique [0002] my country is the country that uses the largest amount of pesticides in the world. The actual annual output of pesticides is about 400,000 tons, second only to the United States and ranks second in the world. In addition to symptoms, long-term expos...

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): G01N27/48
Inventor 孙霞郭业民王相友刘君峰孙晓旭
Owner SHANDONG 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