Determination of isobutyl methacrylate in workplace air by gas chromatography

VernacularTitle:工作场所空气中甲基丙烯酸异丁酯测定的气相色谱法
Author: Suhua ZHANG ¹ ; Qitao TAN ; Xing WANG
Author Information

1. 255000　淄博市职业病防治院
Keywords: Workplace; Air; Isobutyl methacrylate; Chromatography, gas
From: Chinese Journal of Industrial Hygiene and Occupational Diseases 2020;38(8):628-630
CountryChina
Language:Chinese
Abstract: Objective:To establish a gas chromatography method for detecting isobutyl methacrylate in workplace air.Methods:From July to October 2019, isobutyl methacrylate in workplace air was collected by activated charcoal tube, absorbed using carbon disulfide and analyzed by gas chromatography (FID) with FFAP capillary column.Results:The linear range of isobutyl methacrylate in the method was 0-800 μg/ml, the correlation coefficient was 0.99993. The detection limit was 0.35 μg/ml. The lowest detected concentration was 0.12 mg/m 3. The within-run precision was 2.06%-2.72%, the between-run precision was 3.03%-3.83%. The rates of desorption was 96.7%. The breakthrough volume was 14.46 mg. The average sampling efficience was 100%. The samples could be stored at room temperature for 7 days. Conclusion:The method is simple, highly sensitive and precise. Isobutyl methacrylate in workplace air could be determined accurately.