GB/T 45275-2025 Determination of N,N-dimethylformamide in toys and children's products — Gas chromatography-mass spectrometry
1 Scope
This document describes a method for determination of N,N-dimethylformamide in toys and children's products by gas chromatography-mass spectrometry.
This document is applicable to the determination of N,N-dimethylformamide content in toys and children's products.
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 22048-2015 Determination of certain phthalate esters in toys and children’s products
3 Terms and definitions
No terms and definitions are listed in this document.
4 Principle
N,N-dimethylformamide can be extracted from toys and children's products by ultrasonic extraction with ethyl acetate as the extraction solution. After filtration, the extraction solution can be determined by gas chromatography-mass spectrometry and quantified by external standard method.
Contents Foreword 1 Scope 2 Normative references 3 Terms and definitions 4 Principle 5 Reagents and materials 6 Apparatus 7 Test method 8 Calculation of result 9 Limit of quantification 10 Precision 11 Test report Annex A (Normative) Information on the target substance N,N-dimethylformamide determined in this document Annex B (Informative) Chromatogram and mass spectrum of N,N-dimethylformamide Annex C (Informative) Precision Bibliography
