S China J Prev Med ›› 2014, Vol. 40 ›› Issue (5): 431-435.doi: 10.13217/j.scjpm.2014.0431

• Original Article • Previous Articles     Next Articles

Simultaneous determination of methyl methacrylate in the air of workplaces by solvent desorption gas chromatography

LI Tian-di, TIAN Dong-chao, YUN Jian-pei, LIN Yi-ran, LIU Fen, LI Shuang-feng   

  1. Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen 518001,China
  • Received:2014-05-11 Online:2014-10-20 Published:2014-11-07

Abstract: Objective To establish solvent desorption gas chromatographic method for determination of methyl methacrylate in the air of workplaces. Methods Air samples containing methyl methacrylate in the workplace were collected with activated carbon tube and desorbed with CS2 or with silica gel tube and desorbed with acetone, and then separated with FFAP capillary columns and detected with flame ionization detector. Results The linear ranges were 0.6-561.6 mg/L for samples collected with activated carbon tube and desorbed with CS2 and 0.6-1 497.6 mg/L for samples collected with silica gel tube and desorbed with acetone. The limits of detection were both 0.6 mg/L. The determination had a good reproducibility. Their relative standard deviations were 1.2%-4.0% and 0.5%-2.5%, respectively. The average desorption efficiencies were 94.2%-97.5% and 97.0%-98.3%. Absorption efficiencies were 99.8%-100.0% and 94.1%-100.0%. The breakthrough volume was above 28.6 mg in 100 mg activated carbon and 2.7 mg in 300 mg silica gel. Samples collected by the two solid adsorbent tubes could at least store 7 days at room temperature. Conclusion The two Methods proved to be suitable for the simultaneous determination of methyl methacrylate in the air of workplaces.

CLC Number: 

  • R134+.4