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

Rapid pre-treatment method and detection method used for wine pesticide residues analysis

A technology for wine and pesticide residues, applied to the analysis of materials, measuring devices, material separation, etc., can solve the problems of high solvent consumption and long processing time, and achieve the effects of short time consumption, low cost, and few steps

Active Publication Date: 2016-02-17
COFCO NUTRITION & HEALTH RES INST +1
View PDF2 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In this regard, the purpose of the present invention is to overcome the disadvantages and deficiencies of the existing sample pretreatment technology, such as long processing time and large consumption of solvents, and use a fast, effective and low-cost sample pretreatment process to reduce the residual amount of various pesticides in wine. Simultaneous detection

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 pre-treatment method and detection method used for wine pesticide residues analysis
  • Rapid pre-treatment method and detection method used for wine pesticide residues analysis
  • Rapid pre-treatment method and detection method used for wine pesticide residues analysis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] 1. Preparation of standard solution

[0027] The standard solution was diluted with acetone and prepared into a 10 μg / mL mixed standard stock solution, which was stored at -18°C.

[0028] 2. Sample pretreatment

[0029] Extraction: Take 10g of shaken wine and put it in a 50mL centrifuge tube, add an appropriate amount of internal standard substance (epoxyheptachlor B), add 20mL of acetonitrile (containing 1% acetic acid), 4g of sodium chloride and 1g of anhydrous sodium acetate, After manual shaking for 2 minutes, ultrasonic extraction was performed for 20 minutes. During ultrasonication, ice packs should be added to prevent the water temperature from rising rapidly. After adding 6g of anhydrous magnesium sulfate, shake quickly for 2 minutes, and centrifuge at 3000r / min for 5 minutes in a low-speed centrifuge.

[0030] Purification: Take a 15mL polypropylene centrifuge tube, add 50mg of graphitized carbon black, 250mg of N-propylethylenediamine bonded silica gel and 1g...

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
Apertureaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for pre-treatment of wine, the wine is a sample which is waiting for being detected for content of pesticide residues, and the method comprises three steps of extraction, purification and concentration. The invention also relates to a pesticide residues detection method for the wine, and the pre-treatment method performs pre-treatment on the wine sample. The pre-treatment method can realize rapid pre-treatment on the wine sample for detecting the pesticide residues, and has the advantages of less step, short time consumption, no requirement of massive organic solvent, environmental protection and low cost.

Description

technical field [0001] The invention relates to a rapid pretreatment method for analyzing pesticide residues in wine and a detection method using the pretreatment method. Specifically, the present invention performs rapid pretreatment on wine samples, thereby using gas chromatography-mass spectrometry to simultaneously detect the residues of multiple pesticides in wine. Background technique [0002] Fungicides are agents that can kill or inhibit the growth of pathogenic microorganisms, and have a wide range of applications. Wine grapes are susceptible to fungal diseases, so fungicides need to be sprayed several times during the planting process, including sulfur preparations, copper preparations, amines, aromatics, benzimidazoles, imides and triazoles, etc. Insecticides and herbicides are also important pesticides to prevent harmful organisms and protect plants. Commonly used ones include organophosphates, organochlorines, pyrethroids, carbamates, and diphenyl ethers. Resi...

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): G01N30/08G01N30/02
Inventor 章晴陈士恒杨永坛
Owner COFCO NUTRITION & HEALTH RES INST
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