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Method for determining chloromethyl methyl ether in automotive materials

A chloromethyl methyl ether and automobile technology, applied in the field of analytical chemistry, can solve problems such as passenger personal safety hazards, and achieve the effects of fast testing, personal safety assurance, and simple operation

Active Publication Date: 2015-04-08
SGS STANDARD TECHNICAL SERVICES SHANGHAI CO LTD
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AI Technical Summary

Problems solved by technology

Among the many and varied automotive interior materials, some materials may release chloromethyl methyl ether, which is harmful to the personal safety of passengers, so there is an urgent need for a method that can determine the content of chloromethyl methyl ether in automotive materials

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  • Method for determining chloromethyl methyl ether in automotive materials
  • Method for determining chloromethyl methyl ether in automotive materials
  • Method for determining chloromethyl methyl ether in automotive materials

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Embodiment Construction

[0032] The invention provides a method for measuring chloromethyl methyl ether in automotive materials, comprising the following steps:

[0033] 1) Sample pretreatment: Cut the sample to be tested into a cube no larger than 2×2×2mm. The sample to be tested is an automotive material, and the substance to be tested is chloromethyl methyl ether;

[0034] 2) Sample extraction: Weigh an appropriate amount of sample into a headspace bottle, add acetone and deuterated toluene internal standard solution, tightly cap the bottle and put it into a headspace sampler, the concentration of the deuterated toluene solution is 500ug / mL, Wherein, acetone is the solvent, and the internal standard is deuterated toluene, and its molecular formula is C 7 D. 8 ;

[0035] 3) Sample test: adopt headspace gas chromatography-mass spectrometry to measure the content of chloromethyl methyl ether in the sample obtained in step 2), and use the internal standard method to quantify; specifically, compare th...

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Abstract

The invention belongs to the technical field of analytic chemistry, and particularly relates to a method for determining the content of chloromethyl methyl ether in automotive materials. The method comprises the following determining steps: (1) cutting a to-be-determined sample into small cubes with sizes of about 2mm*2mm*2mm, and sealing for later use; (2) weighing a certain amount of sample and placing the sample in a headspace bottle, adding acetone, adding toluene-d8 as an internal standard, after fastening the bottle cover down, placing in a headspace sampler; and (3) determining the content of chloromethyl methyl ether in a sample by adopting a gas chromatography-mass spectroscopy meter. According to the method, the content of chloromethyl methyl ether in the automotive materials is determined by adopting the gas chromatography-mass spectroscopy meter, and is quantified by adopting an internal standard method; the method is little in sampling amount, simple in pretreatment operation, and rapid in testing; accurate determination of the content of chloromethyl methyl ether in the automotive materials can be realized, and the detection limit of the method is 100mg / kg.

Description

[technical field] [0001] The invention belongs to the technical field of analytical chemistry, in particular to a method for measuring chloromethyl methyl ether in automotive materials. [Background technique] [0002] With the advancement of science and technology and the improvement of people's living standards, the automobile industry has experienced a blowout development. It can be said that automobiles have become a necessity for people's lives. However, as many as dozens of automotive interior materials may pollute the air inside the car, seriously threatening the health and safety of passengers. People have begun to pay attention to the pollution of automotive interior materials, and many countries have also issued corresponding laws. Regulations to control pollution from automotive interior materials. [0003] Chloromethyl methyl ether is a colorless and transparent liquid, volatile, irritating odor, lachrymatory, highly toxic, acute inhalation can cause severe irrit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06
Inventor 刘平年冯颖储方为俞安敏
Owner SGS STANDARD TECHNICAL SERVICES SHANGHAI CO LTD
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