GB 31604.58-2023

National Food Safety Standard Determination of Migration Amounts of Nine Antioxidants in Food Contact Materials and Products (English Version)

Standard No.

GB 31604.58-2023

Language

Chinese, English version preview

Release Date

2023

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB 31604.58-2023

Introduction

GB 31604.58-2023 Standard Overview

GB 31604.58-2023 "National Food Safety Standard for Determination of Migration of 9 Antioxidants in Food Contact Materials and Articles" is an important standard for the detection of migration of 9 common antioxidants in food contact materials and articles. This standard is applicable to the determination of migration of antioxidants in plastics, rubber, paints and coatings, adhesives, inks, and paper and paperboard food contact materials and articles.

Background and Significance of Standard Formulation

Food contact materials are widely used in food packaging and processing, and their safety and migration effects on food are directly related to food safety. Antioxidants, as important additives in food contact materials, can effectively extend the service life of materials and prevent oxidative degradation, but their migration may pose potential risks to human health. Therefore, the formulation of unified testing standards is of great significance to ensure the safety of food contact materials.

Comparative analysis of technical routes

Method name	Scope of application	Detection principle	Sensitivity
High performance liquid chromatography	Applicable to the determination of antioxidant migration in a variety of food simulants and chemical alternative solvents.	Using ultraviolet detector or diode array detector, quantitative analysis is performed by peak area external standard method.	High sensitivity, suitable for detection in medium concentration range.
Liquid chromatography-tandem mass spectrometry	Applicable to the detection of antioxidant residues in complex matrices.	Using multiple reaction monitoring (MRM) mode, combined with accurate mass analysis technology, high sensitivity and specificity are achieved.	Ultra-high sensitivity, suitable for trace detection.

Standard implementation recommendations

Actual application case: Antioxidant migration test operation process

Taking high performance liquid chromatography as an example, the specific implementation steps are as follows:

1. Sample preparation: Food contact materials are tested for migration in accordance with GB 31604.1 and GB 5009.156.
2. Immersion liquid treatment: According to different food simulants (such as water, acetic acid, ethanol, etc.) or chemical alternative solvents, filter or nitrogen blow concentration treatment is performed respectively.
3. Standard curve drawing: Use 9 kinds of antioxidant standards to prepare standard solutions of different concentrations, measure the peak area by HPLC, and establish a linear regression equation.
4. Sample measurement and analysis: Inject the treated sample solution into the HPLC, and calculate the antioxidant migration amount according to the standard curve.

GB 31604.58-2023 history

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