On-line detection method and detection system for migration rate of bisphenol A in food contact material

A food contact material and detection method technology, applied in the field of on-line detection method and detection system of bisphenol A migration in food contact materials, can solve problems such as cumbersome pretreatment methods, achieve the goal of improving work efficiency and simplifying the detection process Effect

Inactive Publication Date: 2016-11-09
BEIJING CENT FOR PHYSICAL & CHEM ANALYSIS
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Problems solved by technology

For example, harmful substances such as plasticizers, antioxidants, oligomers, and residual monomers can be detected by high performance liquid chromatography, gas chromatography, gas chromatography-mass spectrometry, liquid chromatography-mass spectrometry and other technical means , but various pretreatment methods are more cumbersome

Method used

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  • On-line detection method and detection system for migration rate of bisphenol A in food contact material

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Experimental program
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Effect test

Embodiment 1

[0031] Use water-based food simulant C (10% ethanol water solution by volume) as solvent to prepare bisphenol A standard series. The absorbance and standard curve were established, and the corresponding absorbance values ​​of the corresponding concentrations are shown in Table 1.

[0032] Table 1

[0033] C, concentration

0

0.5

1

5

10

50

100

A, Absorbance

0.00688

0.01253

0.01786

0.06774

0.13051

0.6246

1.2627

[0034] By calculation, the working curve equation is A=0.012 C+0.005, and the correlation coefficient n=0.999

[0035] Cut polycarbonate materials with an area of ​​0.6 square decimeters as product contact materials, and place them in the food contact material transfer device.

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Abstract

The invention relates to an on-line detection method for the specific migration rate of bisphenol A in a food contact material. The method comprises the following steps: 1) adding a series of standard bisphenol A solutions into migration apparatuses for separate determination of light absorption values and establishing an equation for a standard curve; 2) measuring a certain volume of water-based food analogues, separately pouring the water-based food analogues into the migration apparatuses for the food contact material, cutting a certain area of the food contact material and soaking the food contact material in the water-based food analogues so as to obtain food analogue solutions; and 3) regularly determining the absorbance of the food analogues and calculating the concentrations of bisphenol A in the food analogues according to the standard curve established in the step 1). The invention further relates to an automatic detection system using the on-line detection method.

Description

technical field [0001] The invention belongs to the field of food safety. Specifically, the invention relates to an on-line detection method and a detection system for bisphenol A migration in food contact materials. Background technique [0002] For a long time, food safety has been a hot issue of global concern. Food safety not only refers to the safety of the food itself, but also includes the safety of the packaged food. With the rapid development of material science, polymers, as a kind of packaging materials, have been widely used in food packaging. However, while the additives in the polymer improve the processability and performance of the polymer, they will also migrate from the polymer material to the food in contact with it under certain conditions to contaminate the food. The national mandatory standard GB9685-2008 "Hygienic Standards for the Use of Additives for Food Containers and Packaging Materials" clearly stipulates the principles of using additives for f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/33
CPCG01N21/33
Inventor 沈上圯刘伟丽张梅周明强高峡
Owner BEIJING CENT FOR PHYSICAL & CHEM ANALYSIS
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