溶剂解吸-气相色谱法测定工作场所空气中1,2-二氯丙烷和1,3-二氯丙烷  

Detecting 1,2-dichloropropane and 1,3-dichloropropane in workplace air by solvent desorption-gas chromatography

作　　者：何嘉恒[1] 戎伟丰[1] 蒙瑞波[1] 胡嘉雯 吴邦华[1] HE Jiaheng;RONG Weifeng;MENG Ruibo;HU Jiawen;WU Banghua(Guangdong Province Hospital for Occupational Disease Prevention and Treatmen;Guangdong Provincial Key Laboratory of Occupational Disease Prevention and Treatment, Guangzhou, Guangdong 510300, Chin)

机构地区：[1]广东省职业病防治院广东省职业病防治重点实验室,广东广州510300

出　　处：《中国职业医学》2018年第3期369-372,共4页China Occupational Medicine

基　　金：国家科技支撑计划项目(2014BAI12B01);国家临床重点专科建设项目(2011-09);广东省职业病防治重点实验室(2017B030314152)

摘　　要：目的建立工作场所空气中1,2-二氯丙烷和1,3-二氯丙烷同时测定的溶剂解吸-气相色谱法。方法采用活性炭管采集样品,经二硫化碳解吸,以DB-1毛细管色谱柱分离后,采用气相色谱仪测定。结果 1,2-二氯丙烷、1,3-二氯丙烷质量浓度分别在1.16~17 400.00 mg/L和1.19~17 850.00 mg/L时线性关系良好,相关系数均为0.999 9,检出限均为0.07 mg/L,平均解吸效率分别为96.9%~98.2%和95.8%~96.8%,批内相对标准偏差(RSD)均为0.4%~0.6%,批间RSD分别为1.6%~3.2%和1.2%~2.8%,样品在室温下至少可保存14 d。结论本方法解吸效率和灵敏度较高,精密度好,操作简单,适用于工作场所空气中1,2-二氯丙烷和1,3-二氯丙烷的同时测定。Objective To establish a method for simultaneous determination of 1,2-dichloropropane and 1,3-dichloropropane in workplace air by solvent desorption-gas chromatography.Methods The air samples were collected by activated carbon tube and desorbed with carbon disulfide,then separated by DB-1 capillary columns,and detected by gas chromatographic.Results The linear ranges of 1,2-dichloropropane and 1,3-dichloropropane were 1.16-17 400.00 mg/L and 1.19-17 850.00 mg/L of mass concentration,respectively.The correlation coefficient was 0.999 9,and the limit of detection was 0.07 mg/L.The average desorption efficiencies of 1,2-dichloropropane and 1,3-dichloropropane were 96.9%-98.2%and 95.8%-96.8%,respectively.The within-run relative standard deviation（ RSD） was 0.4%-0.6%.The between-run RSD were 1.6%-3.2% and 1.2%-2.8% respectively.The samples could be stored at room temperature for at least 14 days.Conclusion This method has high desorption efficiency and sensitivity with good precision and simple operation,which is suitable for simultaneous detection of 1,2-dichloropropane and 1,3-dichloropropane in the workplace air.

关 键 词：工作场所 空气 1 2-二氯丙烷 1 3-二氯丙烷 气相色谱 溶剂解吸 

分 类 号：R134.4[医药卫生—劳动卫生]