GC Determination of Acrylates in Air

Three acrylates,i.e.,methyl acrylate,butyl acrylate and methy methacrylate,in air were determined by gas chromatography.Twenty liters of air were taken with a sampler and the acrylates were adsorbed with activated charcoal.One mL of CS2 was used as desorbent to desorb the acrylates from the charcoal and an aliquot of 1 μL was taken for GC analysis.Qualitative analysis was performed according to the retention time obtained,and results of determination were found by the method of standard curve according to values of peak heights.Values of detection limits found were 0.004 mg·m-3 for methyl acrylate,0.006 mg·m-3 for butyl acrylate and 0.007 mg·m-3 for methyl methacrylate.