Determination of bromoform in the air of workplace by solvent desorption gas chromatography

VernacularTitle:工作场所空气中三溴甲烷测定的溶剂解吸气相色谱法
Author: Xiaojuan LI ¹ ; Baoli ZHU ; Jian WU ; Changmei ZHOU ; Wei GONG
Author Information

1. 江苏省疾病预防控制中心
Keywords: Bromoform; Workplace; Solvent desorption; Chromatography,gas
From: Chinese Journal of Industrial Hygiene and Occupational Diseases 2016;34(4):299-301
CountryChina
Language:Chinese
Abstract: Objective To establish the method of solvent desorption gas chromatography for determination of bromoform in workplace air.Methods Bromoform in the air was adsorbed by activated carbon tube sampling and solvent desorption using carbon disulfide,then analyed by GC with DB-FFAP capillary column.Results The linear regression equation is y=1.22x-0.81 (r=0.999 9) between 0.57～300.00 μg/ml of target concentration in the air.The detection limit was 0.17 μg/ml.The relative standard deviations of the batch and inter batch were 1.7％～3.6％,2.8％～6.3％,respectively.The sampling efficiency was 100％.The overall desorption efficiency was 95.0％.The breakthrough capacity was more than 0.61 mg (100 mg activated carbon).Conclusion The method is suitable to determine bromoform in the air of workplace.