Quick detection method and pretreatment method for residual quantity of various pesticides in tomato sauce

A technology for pesticide residues and ketchup, which is used in measuring devices, instruments, scientific instruments, etc., can solve the problems of long processing time and few detection types, and achieve the effect of reducing detection costs, reducing damage, and simplifying time consumption.

Inactive Publication Date: 2017-01-04
COFCO GROUP +1
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the invention is to overcome the shortcomings of existing pesticide residue detection methods, such as few detection types and long processing time, and develop a method for detecting multiple pesticide residues in a low-cost, high coverage and efficient tomato sauce; meanwhile, The present invention extracts, purifies, and concentrates tomato paste samples by using a unified sample pretreatment method, and then adopts different instrument detection methods to realize simple and convenient rapid detection of various pesticide residues in tomato paste

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
  • Quick detection method and pretreatment method for residual quantity of various pesticides in tomato sauce
  • Quick detection method and pretreatment method for residual quantity of various pesticides in tomato sauce
  • Quick detection method and pretreatment method for residual quantity of various pesticides in tomato sauce

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] like figure 1 As shown, the present invention adopts a unified sample pretreatment method to extract, purify and concentrate the tomato paste sample, and then use different instrument detection methods to realize the rapid detection of various pesticide residues in tomato paste.

[0029] In the pretreatment method of the present invention, the acetonitrile added in step (1) optionally contains 1% acetic acid, and the addition of acetic acid can further stabilize the alkali-labile pesticides in the sample, thereby improving the detection accuracy.

[0030] In step (3), when obtaining the liquid sample to be tested for GC-FPD analysis, the sample is nearly dried with nitrogen. The "nearly dry" means that it is not necessary to completely dry the sample, but the nitrogen blowing is stopped when there is basically no visible liquid solvent in the sample, and acetonitrile can be further added to redissolve after a short period of time. Specifically, "nearly dry" may mean th...

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
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention relates to a pretreatment method for quickly detecting residual quantity of various pesticides in tomato sauce. The method comprises the following steps: extracting, purifying, filtering and the like. The invention further relates to a method for quickly detecting the residual quantity of the various pesticides in the tomato sauce by using the pretreatment method and then using different instrument detecting methods.

Description

technical field [0001] The present invention relates to a pretreatment method for rapid detection of various pesticide residues in tomato paste, and also relates to the use of the pretreatment method, using gas chromatography-flame photometric detector, gas chromatography-electron capture detector and liquid A phase chromatography-tandem quadrupole mass spectrometer is a rapid detection method for analyzing various pesticide residues in tomato paste, which belongs to the field of food safety detection. Background technique [0002] A variety of pesticides are used in the tomato planting process. These pesticides are stable and not easy to degrade. During the tomato processing process, they will remain in the final product - tomato paste, posing a risk of pesticide residues. At present, there are hundreds of pesticides used in China, and hundreds of pesticides may also be used in the tomato planting process. How to quickly detect multiple pesticides in tomato paste across typ...

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): G01N30/88G01N30/06
Inventor 陈士恒史晓梅吕岳文刘超章晴高丁孙屏杨永坛
Owner COFCO GROUP
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