Method for detecting 1,2-benzenedicarboxylic acid-dialkyl ester plasticizer in plastic through gas chromatography-mass spectrometry

A technique of gas chromatography and dialkyl esters, applied in the field of instrumental analysis

Active Publication Date: 2016-07-06
国家再生有色金属橡塑材料质量监督检验中心(安徽)
View PDF2 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Foreign studies on DHNUP and DIHP are only about their toxicity research, a

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 detecting 1,2-benzenedicarboxylic acid-dialkyl ester plasticizer in plastic through gas chromatography-mass spectrometry
  • Method for detecting 1,2-benzenedicarboxylic acid-dialkyl ester plasticizer in plastic through gas chromatography-mass spectrometry
  • Method for detecting 1,2-benzenedicarboxylic acid-dialkyl ester plasticizer in plastic through gas chromatography-mass spectrometry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] The invention discloses a method for detecting 1,2-phthalic acid-dialkyl ester plasticizers in plastics by gas chromatography-mass spectrometry, which comprises the following steps,

[0036] 1) configure the standard solution,

[0037] 2) Optimize the instrument and measurement working conditions,

[0038] 3) Prepare the sample to be tested and perform purification and extraction,

[0039] 4) establish standard curve,

[0040] 5) Optimize the detection limit, lower limit of quantitation, precision and recovery of the method,

[0041] 6) According to the measurement method established in step 1) to step 5), the sample to be tested is measured.

[0042] Specifically, the standard solution in step 1) is prepared by mixing a DIHP standard stock solution prepared from a DIHP standard product and a DHNUP standard stock solution prepared from DHNUP standard products with six isomer chemical structures.

[0043] Among them, the chemical name of the DIHP standard is phthalic...

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 relates to a method for detecting a 1,2-benzenedicarboxylic acid-dialkyl ester plasticizer in plastic through gas chromatography-mass spectrometry. The method comprises the steps that 1, a standard solution is prepared; 2, instruments and measurement work conditions are optimized; 3, a sample to be detected is prepared, purified and extracted; 4, a standard curve is built; 5, the detection limit, the lower quantitation limit, the precision and the recovery rate of the method are determined; 6, the sample to be detected is determined according to the determination method built in the step 1 to the step 5. According to the method, the detection efficiency and the detection accuracy are improved.

Description

technical field [0001] The invention relates to the technical field of instrument analysis, in particular to a gas chromatography-mass spectrometry method for detecting 1,2-phthalic acid-dialkyl ester plasticizers in plastics. Background technique [0002] DIHP (1,2-phthalic acid-di(C6-8 branched chain) alkyl ester (C7-rich)) and DHNUP (1,2-phthalic acid-di(C7-11 branched and linear) alkyl (alcohol) esters) are two types of 1,2-phthalic acid-dialkyl esters. DHNUP and DIHP are mainly used in various plastic products such as plastic packaging material containers and medical supplies, which can increase the plasticity and strength of the product. DHNUP and DIHP plasticizers have excellent performance, but their inherent characteristics will cause great harm to the human body and the environment. Both DIHP and DHNUP belong to CMR substances (i.e. carcinogenic, gene mutation, reproductive toxic substances), which have reproductive toxicity, will affect the normal development of...

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): G01N30/02
CPCG01N30/02G01N2030/025
Inventor 王桂苓赵杰谭波涛刘贝贝王忠盛良全罗怀邦朱宾张岩岩
Owner 国家再生有色金属橡塑材料质量监督检验中心(安徽)
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