Abstract

According to the EU (2009/251/EC), the presence of DMFm in products should be below the maximum limit of 0.1mg/kg. In this paper, the gas chromatography-mass spectrometry (GC-MS) method is used to determine the content of DMFm in leather and textile products. This method is simple, rapid, and highly accurate. An Agilent 6890N-5973 GC-MS instrument and a DB-5MS column are used in this method. By optimizing the extraction process parameters, the best extraction solvent for DMFm with over 90% extracted is ethyl acetate, and the method successfully quantifies DMFm with a good linear relationship (R2=0.9998) within the range 0.1-20mg/kg. The recovery rate of this method is 80-100%, the RSD is 2.3-9.1%, and the lowest detection limit is determined as 0.01mg/kg.