Determination of the vinyl chloride monomer in poly vinyl chloride food packaging materials by capillary gas chromatography method

A GC-based method for the determination of vinyl chloride monomer in poly vinyl chloride is developed.Vinyl chloride monomers is extracted by headspace technology,separated in a polar capillary gas chromatography column,and detected by FID.The developed method is of the good linearity from 0.05 to 0.2 mg/L with the correlation coefficient of 0.999.And the method is of good precision with the RSD of 3.1% and of good sensitivity with the quantitative limit of 0.5 mg/kg.