A method for determining the migration of bisphenols in plastic food packaging materials

A technology of food packaging and determination method, which is applied in the direction of material separation, analysis material, measuring device, etc., can solve the problem that the detection method cannot meet the hygienic limit requirements, and achieve the effect of accurate, reliable and reproducible quantification

Inactive Publication Date: 2016-10-05
BEIJING LILAI SCI & TECH DEV CENT
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  • Abstract
  • Description
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Problems solved by technology

[0007] The invention provides a method for measuring the migration of bisphenol S in plastic food packaging materials, which solves the problem that the existing detection methods cannot meet the requirements of relevant hygienic limit requirements

Method used

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  • A method for determining the migration of bisphenols in plastic food packaging materials
  • A method for determining the migration of bisphenols in plastic food packaging materials
  • A method for determining the migration of bisphenols in plastic food packaging materials

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Embodiment Construction

[0038] The food simulants involved in this embodiment are: water, 3%W / V acetic acid, 4%V / V acetic acid, 10%V / V ethanol, 20%V / V ethanol, 50%V / V ethanol, 95% ethanol.

[0039] A method for determining the migration of bisphenol S in plastic food packaging materials, comprising the following steps:

[0040] Step 1: Prepare standard working solution, food simulant test solution and blank test solution: the standard working solution is a standard working solution with seven concentrations prepared from bisphenol S; the food simulant test solution is made of plastic food packaging materials and food The simulants are obtained through migration experiments according to the test conditions of GB / T 23296.1-2009 or EU 82 / 711 / EEC and 85 / 572 / EEC, including various common food simulants and oily food simulants; the blank test solution is Food simulants not in contact with plastic food packaging materials.

[0041] The preparation methods of each standard working solution are as follows: ...

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Abstract

The invention discloses a method for measuring the migration of bisphenol S in plastic food packaging materials, [step 1] preparing a standard working solution, a food simulant test solution and a blank test solution; [step 2] using high performance liquid chromatography-tandem triple four The pole mass spectrometer performs liquid chromatography-tandem triple quadrupole mass spectrometry on the three solutions in step 1 respectively; the concentration x of bisphenol S in the standard working solution is taken as the abscissa, and the corresponding measured quantitative ion The peak area y is the ordinate, and the standard working solution regression curve is drawn, and the linear equation y=ax+b obtained according to the curve calculates the slope a and the intercept b of the regression curve; [step 3] according to the formula c=[(y 模 -y 空 )‑b] / a, calculate the concentration of bisphenol S in the food simulant test solution. The method of the invention can accurately measure the migration amount of bisphenol S in the plastic food packaging material, the quantification is accurate and reliable, and the reproducibility is good.

Description

technical field [0001] The invention relates to a method for measuring the migration amount of bisphenol S in plastic food packaging materials. Background technique [0002] Bisphenol A is a "pollutant" contained in plastic tableware, which not only causes heart disease, but also induces diabetes and liver disease, affects the brain development of fetuses and children, and even increases the risk of prostate and breast cancer. A Harvard University study found that bisphenol A can also increase the risk of female infertility. The occurrence of the bisphenol A baby bottle incident has made consumers pay more and more attention to the importance of safety in the use of food contact materials. In addition to bisphenol A, which has been widely concerned by people, other alternative raw material monomers and similar substances have gradually become popular among people. New objects to follow. [0003] Bisphenol S (4,4'-dihydroxydiphenyl sulfone) has many excellent properties suc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/88
Inventor 何正罗世翊刘波
Owner BEIJING LILAI SCI & TECH DEV CENT
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