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Method for measuring VOCs in packaging material by virtue of gas chromatography-mass spectrometry

A technology for organic compounds and packaging materials, which is used in the field of gas chromatography-mass spectrometry for the determination of volatile organic compounds in packaging materials, which can solve the problems of false positives, few types of tests, and difficulty in qualitative determination of the results, so as to reduce interference and reduce false positives. Positive Risk, Effect of Enhanced Qualitative Capability

Inactive Publication Date: 2017-05-10
CHINA PACKAGING RES & TEST CENT
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Problems solved by technology

There are many deficiencies in the gas chromatography analysis method: first, the solid phase microextraction sampling method will introduce organic solvents, resulting in external interference; second, it is difficult to qualitatively determine the results by gas chromatography, and there is a risk of false positives; There have been some studies on solvent residues in the medium, but due to the small number of test types in this method, it can no longer meet the current test requirements for VOCs in packaging materials

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  • Method for measuring VOCs in packaging material by virtue of gas chromatography-mass spectrometry
  • Method for measuring VOCs in packaging material by virtue of gas chromatography-mass spectrometry
  • Method for measuring VOCs in packaging material by virtue of gas chromatography-mass spectrometry

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Embodiment Construction

[0028] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.

[0029] A method for measuring volatile organic compounds in packaging materials by gas chromatography-mass spectrometry, the steps of the method are:

[0030] 1) Sample preparation: sample: composite film for food packaging; specification and model: material: PA15 / SPE60, size (mm): 150×85×0.075; sample description: incoming sample sealed package, plastic coil, with printing on the surface of the sample; Test content: Test the VOCs of food packaging materials. Cut out 100cm of the densely printed pattern area in the material 2 For the sample, the sample to be tested is quickly cut into pieces and placed in a headspace bottle, sealed and then tested.

[0031] 2) Headspace sampling: send the sample to be tested into the heating mantle of the ...

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Abstract

The invention relates to a method for measuring VOCs in a packaging material by virtue of gas chromatography-mass spectrometry. The method is characterized by comprising the following steps: test sample preparation: rapidly cutting a sample to be measured into pieces for placement in a headspace bottle, and performing sealing for measurement; headspace sample introduction; joint measurement with gas chromatography and mass spectrometry; qualitative confirmation; quantitative analysis; result calculation. According to the method for measuring the volatile organic compound in the packaging material by virtue of gas chromatography-mass spectrometry, the VOCs in the packaging material are measured by adopting headspace sampling gas chromatography-mass spectrometry, a headspace sampling manner is adopted, and no organic solvent is adopted for extraction and concentration, so that interference of an external solvent is reduced; a gas chromatograph-mass spectrometer is adopted for detection, so that the qualification capability of the method is enhanced, and the risk of false positive is reduced; multiple types comprising alcohols, esters, ketones, benzenes and halogenated hydrocarbons can be tested, and the current requirements on testing of the VOCs in the packaging material are basically met.

Description

technical field [0001] The invention belongs to the technical field of packaging material detection, in particular to a method for measuring volatile organic compounds in packaging materials by gas chromatography-mass spectrometry. Background technique [0002] At present, due to the large amount of adhesives, inks and organic solvents used in the production process of packaging materials, although these auxiliary materials are not in direct contact with the product, the VOCs (volatile organic compounds) in food packaging materials during product packaging and storage ) may migrate into products and the environment, thereby endangering human health. Moreover, the current common packaging materials are mainly polymer materials, and some substances produced by polymer cracking may also have an impact on the human body and the environment. Therefore, VOC in packaging materials S The detection and control of detection is being paid attention to. At present, headspace sampling...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/16
CPCG01N30/02G01N30/16
Inventor 张卫红南洋杜悦李长兴刘卉
Owner CHINA PACKAGING RES & TEST CENT
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