Method for determination of migration of diallyl phthalate in food contact materials

Abstract

The invention discloses a method for measuring diallyl phthalate migration in food contact materials. The method includes the steps: firstly, preparing a standard working solution, a food stimulant test solution and a blank test solution; secondly, adopting a high performance liquid chromatograph-tandem triple quadrupole mass spectrometer to perform liquid chromatograph-tandem mass spectrum measurement on the three solutions in the first step, drawing a regression curve of the standard working solution by taking concentration x of phthalate in the standard working solution as an abscissa and corresponding measured quantitative ion peak area y as an ordinate, and calculating slope a and intercept b of the regression curve according to a linear equation, of y=ax+b, obtained by the curve; thirdly, according a formula that c=[(y-y)-b] / a, calculating concentration of diallyl phthalate in the food stimulant test solution. By the aid of the method, migration of the diallyl phthalate in the food contact materials can be measured accurately, quantification is accurate and reliable, and reproducibility is good.

Description

technical field [0001] The invention relates to a method for measuring the migration of diallyl phthalate in food contact materials. Background technique [0002] Phthalates are the most common plasticizers in the plastics industry. They are widely added to the production of polymer plastic products and are widely used in many materials such as toys, food packaging materials, medical blood bags and hoses, wallpapers, etc. . Phthalate esters are announced by the World Health Organization as an environmental hormone, which has the effect of estrogen and will interfere with the human endocrine system in the body. Many foods in daily life may cause phthalates to dissolve and penetrate into the food during processing, heating, packaging, and packaging. The Taiwan beverage incident in 2011 and the Jiuguijiu plasticizer health and safety incident in 2012 made phthalates and related food packaging safety issues a field of high public concern. [0003] Diallyl phthalate is a react...

AI Technical Summary

Problems solved by technology

There have been many reports on the detection and research reports [1-4] and detection standards [5-7] of phthalates, but due to the extremely low limit of diallyl phthalate, ordinary instruments cannot meet the relevant requirements. Testing requirements, there is currently no testing method and standard for the migration of diallyl phthalate, so it is urgent to formulate a standard testing method for the migration of phthalates in food simulants to strengthen inspection and supervision

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