工作场所空气中甲基丙烯酸异丁酯测定的气相色谱法  

Determination of isobutyl methacrylate in workplace air by gas chromatography

作　　者：张素华[1] 谭启涛[1] 王星 Zhang Suhua;Tan Qitao;Wang Xing(Zibo Hospital for Occupational Diseases Control and Treatment,Zibo 255000,China)

机构地区：[1]淄博市职业病防治院,255000

出　　处：《中华劳动卫生职业病杂志》2020年第8期628-630,共3页Chinese Journal of Industrial Hygiene and Occupational Diseases

摘　　要：目的:建立工作场所空气中甲基丙烯酸异丁酯的气相色谱测定方法。方法:于2019年7至10月,对工作场所空气中的甲基丙烯酸异丁酯采用活性炭管采集,以二硫化碳解吸后毛细管柱气相色谱法测定。结果:该方法测定甲基丙烯酸异丁酯在0~800μg/ml浓度范围呈线性关系,r=0.99993;检出限为0.35μg/ml,最低检出浓度为0.12 mg/m 3;批内精密度为2.06%~2.72%,批间精密度为3.03%~3.83%;平均解吸效率为96.7%;穿透容量大于14.46 mg,采样效率达100%;样品在室温下至少可保存7 d。结论:甲基丙烯酸异丁酯的气相色谱测定方法操作简便,灵敏度高,精密度好,能准确测定空气中的甲基丙烯酸异丁酯。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 0-800μg/ml,the correlation coefficient was 0.99993.The detection limit was 0.35μg/ml.The lowest detected concentration was 0.12 mg/m3.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.

关 键 词：工作场所 空气 甲基丙烯酸异丁酯 色谱法 气相 

分 类 号：R134.4[医药卫生—劳动卫生]