[Determination of residual acrylate monomers in adhesives by headspace gas chromatography-mass spectrometry].

A method was developed for the determination of methyl acrylate, ethyl acrylate, butyl acrylate, methyl methacrylate, ethyl methacrylate and butyl methacrylate in adhesives by headspace gas chromatography-mass spectrometry (HS-GC-MS). The samples were treated at 100 degrees C for 30 min, then separated on a DB-WAX column (30 m x 0.25 mm x 0.25 microm) and determined by MS under selected ion monitoring mode and quantified by internal standard method. The established method showed good separation with the limits of detection (LODs, S/N = 3) of 0.069 - 0.096 mg/kg and the limits of quantification (LOQs, S/N = 10) of 0.23 - 0.32 mg/kg. The recoveries for acrylate monomers were in the range from 96.0% to 104.6% with the relative standard deviations less than 7.2%. The method is simple, accurate, rapid and highly sensitive. It can be applied to analyze the residual acrylates and methyl acrylates in adhesives.