摘要
目的建立工作场所空气中1,1,1-三氯乙烷的气相色谱测定方法。方法采用活性炭管吸附、二硫化碳解吸、经DB-624毛细管色谱柱分离,火焰离子化检测器检测,外标法定量。结果1,1,1-三氯乙烷在本实验条件下分离良好,在曲线浓度范围内具有良好的线性关系,相关系数>0.9995,检出限0.4μg/mL,相对标准偏差0.94%~4.89%,平均解吸效率为97.4%,穿透容量13.0 mg。结论本方法精密度和准确度高,适用于工作场所空气中1,1,1-三氯乙烷的测定。
Objective To establish a method for the determination of 1,1,1-trichloroethane in air of workplaces by gas chromatography.Methods The study was performed with adsorption by activated carbon tube,desorption by carbon disulfide,separation by DB-624 capillary column,detection by flame ionization detector,and quantification by external standard method.Results 1,1,1-trichloroethane was well separated under the experimental conditions,it had a good linear relationship in the concentration range of the curve,and its correlation coefficient was>0.9995.The detection limit was 0.4μg/mL with the relative standard deviation of 0.94%-4.89%.The average desorption efficiency was 97.4%,and infiltration capacity was 13.0 mg.Conclusion This method has high precision and accuracy and is suitable for the determination of 1,1,1-trichloroethane in the air of workplace.
作者
付小蕾
王敏
江金凤
杨莉
张成
FU Xiao-lei;WANG Min;JIANG Jin-feng;YANG Li;ZHANG Cheng(Health Laboratory,Wuhan Prevention and Treatment Center for Occupational Disease,Wuhan Hubei,430015,China)
出处
《职业与健康》
CAS
2020年第1期32-34,共3页
Occupation and Health
基金
2018年度职业危害识别与控制湖北省重点实验室开放基金项目(OHIC2018G07)
2017年度职业危害识别与控制湖北省重点实验室开放基金项目(OHIC2017G12)
武汉市卫生计生委医学青年项目(WG18Q07).
作者简介
付小蕾,女,技师,主要从事职业卫生理化检验工作;通信作者:王敏,副主任技师,E-mail:nimgnaw@163.com
