Method for detecting carcinogenic dye in plastic packaging material

A plastic packaging and detection method technology, applied in the direction of material separation, analysis materials, measuring devices, etc., can solve the problem that the health threat of carcinogenic dyes has not attracted widespread attention, and achieve the effect of simple sample pretreatment

Inactive Publication Date: 2018-12-21
厦门市产品质量监督检验院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, on plastic packaging materials, the potential health threat of carcinogenic dyes has not yet attracted widespread attention, and no relevant limit standards or announcements have been seen so far.

Method used

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  • Method for detecting carcinogenic dye in plastic packaging material
  • Method for detecting carcinogenic dye in plastic packaging material
  • Method for detecting carcinogenic dye in plastic packaging material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Take about 20g of a polyvinyl chloride plastic packaging bag, cut it into small pieces with a size of 0.5cm×0.5cm or less with scissors, accurately weigh 1g of the cut sample into a glass bottle with a cover, add 20mL of dichloromethane, and sonicate for 20min at room temperature. Pipette 2mL of the extract and dry it with nitrogen at room temperature, dissolve the residue in methanol and make it to 1mL, filter the membrane, and use a liquid chromatography-mass spectrometer for determination. Each sample was measured twice in parallel. In the content detection of 12 target substances, the carcinogenic dye Disperse Yellow 3 was detected, and the other 11 carcinogenic dyes were not detected. The test results of disperse yellow are shown in Table 1.

[0038] Table 1 Carcinogenic dye disperse yellow 3 content test results in polyvinyl chloride plastic packaging bags (n=6)

[0039]

[0040] To further investigate the standard addition recovery rate of this detection met...

Embodiment 2

[0044] Take about 20g of a polyethylene plastic bag, use scissors to cut small pieces with a size below 0.5cm×0.5cm, and then process the same as Case 1, and the sample liquid is determined by high performance liquid chromatography tandem mass spectrometer. In the content detection of 12 kinds of target substances, the carcinogenic dye Solvent Yellow 1 was detected, and the other 11 kinds of carcinogenic dyes were not detected. The detection results of solvent yellow 1 are shown in Table 3. It can be seen from Table 4 that the average detected concentration of dissolved yellow 1 in the 6 parallel samples was 5.37 mg / kg, the average relative standard deviation (RSD) was 4.68%, and the precision was good.

[0045] Table 3 Test results of carcinogenic dye Solvent Yellow 1 in polyethylene plastic packaging bags (n=6)

[0046]

[0047]

[0048] To further investigate the standard addition recovery rate of this detection method, weigh 3 parts of 1g cut sample, add 0.5mL, 1mL ...

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Abstract

The invention discloses a method for detecting a carcinogenic dye in a plastic packaging material, and the method combines high performance liquid chromatography and mass spectrometry. The method adopts the plastic packaging material as an object, sample pretreatment is simple, no special purification treatment is required, the concentration of the high content carcinogenic dye in a target productcan be accurately determined, and the method is suitable for standardization.

Description

technical field [0001] The invention relates to the technical field of carcinogen detection, in particular to a method for detecting carcinogenic dyes in plastic packaging materials. Background technique [0002] The impact of carcinogenic dyes on the safety of plastic packaging materials is mainly manifested in two aspects. On the one hand, it is in direct contact with human skin. Under the long-term slow action of reducing substances produced by human metabolism, if the aromatic amines produced by dyes in plastics / T 18885 (Technical Requirements for Ecological Textiles), one of the 24 types in Appendix A, the dye is carcinogenic to humans, or has been found to be carcinogenic to animals so far, and may be potentially carcinogenic to humans. On the other hand, it is mainly plastic packaging materials that are in contact with food, which is reflected in the migration of carcinogenic dyes in food contact materials to food: toxic and harmful substances in colorants, including...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/72
CPCG01N30/02G01N30/7266G01N2030/027
Inventor 方荣谦高静侯晓阳刘燕頔白荣汉王水亮
Owner 厦门市产品质量监督检验院
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