GB/T 45277-2025 Determination of nine primary aromatic amines in toys — Gas chromatography-mass spectrometry
WARNING: Persons using this document shall be familiar with normal laboratory practice. This document does not purport to address all of the safety problems. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions.
1 Scope
This document describes the gas chromatography-mass spectrometry for the determination of nine primary aromatic amines in toys, including aniline, o-toluidine, 2-methoxyaniline, 4-chloroaniline, 2-naphthylamine, benzidine, 3,3'-dimethyl benzidine, 3,3'-dichlorobenzidine and 3,3'-dimethoxybenzidine.
This document is applicable to textiles, leather, wood, paper, liquids, flexible modeling materials and other toy parts and materials containing colorants (including dyes and pigments).
This document is not applicable to finger paints.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 6682 Water for analytical laboratory use - Specification and test methods
3 Terms and definitions
No terms and definitions are listed in this document.
4 Principle
The sample can be extracted by ultrasonic extraction with appropriate solvent, purified and concentrated by diatomite column, determined by gas chromatography-mass spectrometry, qualified by combined with retention time and characteristic ions, and quantified by external standard method.
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents or materials
6 Apparatus
7 Sample preparation
8 Test procedures
9 Calculation of result
10 Limit of quantification and recovery rate
11 Test Report
Annex A (Normative) Nine primary aromatic amines
Annex B (Informative) Qualitative and quantitative information of nine primary aromatic amines
Annex C (Informative) Total ion flow chromatogram of nine primary aromatic amines
Bibliography
