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

Method for simultaneously measuring chlorotoluene compounds in leather by gas chromatography-mass spectrography

A technology of gas chromatography and chlorotoluene, applied in the field of leather, can solve problems such as teratogenicity, not easy to decompose, and affect the central nervous system

Inactive Publication Date: 2017-05-31
韩超
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, studies at home and abroad have shown that the chemical properties of chlorotoluene compounds are very stable, and they are not easy to decompose under natural conditions. Long-term exposure will cause skin allergies, affect the human central nervous system, and then have potential teratogenic and carcinogenic effects on the human body.

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 simultaneously measuring chlorotoluene compounds in leather by gas chromatography-mass spectrography
  • Method for simultaneously measuring chlorotoluene compounds in leather by gas chromatography-mass spectrography
  • Method for simultaneously measuring chlorotoluene compounds in leather by gas chromatography-mass spectrography

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] Specific embodiments of the present invention such as Figure 1-20 Shown is the method for the simultaneous determination of chlorotoluene compounds in leather by gas chromatography-mass spectrometry, which may further comprise the steps:

[0052] Step 1. Preparation of the sample to be tested. Take an appropriate amount of leather samples, cut the samples into pieces, and the sample size range is less than 20mm×20mm, and mix the cut samples evenly;

[0053] Step 2. Sample extraction. Weigh 1.00 g of the sample, place it in a 40 mL reaction bottle, add 30 mL of dichloromethane, and perform ultrasonic extraction for 30 min at room temperature to obtain an ultrasonic extraction solution. Filter the ultrasonic extraction solution into a 100 mL flat-bottomed flask, concentrate with a rotary evaporator at a temperature of 40°C to obtain a 1-2 mL concentrated solution, transfer the concentrated solution to an evaporating tube, wash the flat-bottomed flask with a small amount ...

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
concentrationaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for simultaneously measuring chlorotoluene compounds in leather by gas chromatography-mass spectrography. The method comprises the following steps: preparing a sample to be measured; extracting the sample; preparing a standard working solution; detecting a sample solution to be measured. According to the method, ultrasonic extracting, gas chromatography and mass spectrography are combined, so that chlorotoluene organic pollutants in the leather can be measured simultaneously; the method has the advantages of accuracy, quickness and high sensitivity; reliable detection method support is provided for quick detection of the leather.

Description

technical field [0001] The invention belongs to the field of leather detection and relates to gas chromatography-mass spectrometry (GC-MS), in particular to a method for simultaneously measuring chlorotoluene compounds in leather by gas chromatography-mass spectrometry, and is especially suitable for leather. Background technique [0002] With the improvement of people's living standards and the enhancement of environmental awareness, green consumption has become a trend. The carrier dyeing process is a commonly used dyeing process in the leather industry. Carrier dyeing is beneficial to dyeing leather with disperse dyes under atmospheric pressure boiling dyeing conditions. Some inexpensive chlorine-containing aromatic compounds, such as chlorotoluene, dichlorotoluene, and trichlorotoluene, are efficient dyeing carriers. These chlorotoluene carriers are used in the leather dyeing process to aid in bulking of the fiber structure and penetration of the dye. [0003] However...

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): G01N30/06
CPCG01N30/06G01N2030/062
Inventor 韩超沈燕刘滨沈浩朱振瓯黄芙珍
Owner 韩超
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