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

Method for measuring migration quantity of benzene series in food processing electric appliance on basis of dynamic headspace

A technology of dynamic headspace and food processing, which is applied in the direction of instruments, measuring devices, scientific instruments, etc., to achieve the effect of high sensitivity and simple operation

Inactive Publication Date: 2017-12-26
CHINESE ACAD OF INSPECTION & QUARANTINE
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on the migration of chemical substances in food contact appliances such as mixers under working conditions.

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 measuring migration quantity of benzene series in food processing electric appliance on basis of dynamic headspace
  • Method for measuring migration quantity of benzene series in food processing electric appliance on basis of dynamic headspace
  • Method for measuring migration quantity of benzene series in food processing electric appliance on basis of dynamic headspace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] 1. Instruments and reagents

[0025] Agilent 6890-5975 Gas Chromatograph-Mass Spectrometer (Agilent, USA), Dynamic Headspace Instrument (DANI, Italy).

[0026] Benzene, p-xylene (Beijing Bailingwei Technology Co., Ltd., purity ≥ 99.0%), ethylbenzene, m-xylene, o-xylene, styrene (Shanghai Macklin Biochemical Technology Co., Ltd., purity ≥ 99%), toluene (Korea Duksan purechemicals, purity ≥ 99.9%), sodium chloride (Xilong Chemical, analytically pure), absolute ethanol (Beijing Chemical Plant, analytically pure), and experimental water was ultrapure water prepared by Milli-Q.

[0027] 2. Solution preparation

[0028] Standard solution: Weigh 20 mg of each standard product, dissolve it in ethanol and dilute it in a 100 mL volumetric flask to prepare a 200 mg / L single-standard stock solution; accurately draw 1 mL of each single-standard stock solution, and dilute it in a 100 mL volumetric flask with ethanol , prepared into 2mg / L mixed standard stock solution. Then diluted...

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 method for measuring the migration quantity of benzene series in a food processing electric appliance on the basis of a dynamic headspace-gas chromatgraphy mass spectrometrometry technology. The method comprises the following steps that food simulation liquid is subjected to migration when a stirring machine is in a normal work state; migration liquid is obtained; the migration liquid is subjected to dynamic headspace purge and trap sampling; the gas chromatography-mass spectrometrometry detection is used; an external standard method is used for quantification. The method for measuring the migration quantity of the benzene series in the food processing electric appliance on the basis of dynamic headspace has the advantages that the operation is simple; the speed is high; the environment is protected; the sensitivity is high; the method can be used for the migration quantity detection of the benzene series in a domestic blender.

Description

technical field [0001] The invention relates to a method for detecting chemical substances, in particular to a method for measuring the migration of benzene series in food processing appliances based on dynamic headspace. Background technique [0002] Household food processing appliances are becoming more and more popular, such as household blenders with functions such as juicing and grinding. Their safety, especially chemical safety, is closely related to the health of consumers. Except for the rotating blade, most of the other parts of the mixer are made of plastic and rubber. Some mixers use unqualified wires, bearings, motors and other parts need to use lubricating oil, which may contain benzene residues. When it comes into contact with food, it may be Migrate into food and endanger human health. All countries in the world have strict regulations on benzene series in food contact materials. For example, my country's "Food Plastic Packaging, Containers, Tools and Other P...

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): G01N30/02G01N30/06
CPCG01N30/02G01N30/06
Inventor 吕庆王志娟张庆李海玉白桦
Owner CHINESE ACAD OF INSPECTION & QUARANTINE
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