气相色谱法同时测定工作场所空气中45种常见有机物  

Simultaneous detection of 45 kinds of common organic compounds in workplace air by gas chromatography

作　　者：戎伟丰 凌伟洁[2] 胡嘉雯 何嘉恒 蒙瑞波 丘静静 阮小林 RONG Weifeng;LING Weijie;HU Jiawen;HE Jiaheng;MENG Ruibo;QIU Jingjing;RUAN Xiaolin(Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangdong Province Key Laboratory of Occupational Disease Prevention and Treatment, Guangzhou, Guangdong 510300, China)

机构地区：[1]广尔省职业病防治院、广东省职业病防治重点实验室,广东广州510300 [2]广州市第十二人民医院,510620

出　　处：《中国职业医学》2018年第3期363-368,共6页China Occupational Medicine

基　　金：国家科技支撑计划项目(2014BAI12B01); 广东省职业病防治重点实验室(2017B030314152); 广东省医学科研基金立项课题(A2015626,A2014072); 卫生标准制定、修订项目(20150713); 广东省医学科研基金指令性课题(C2014010)

摘　　要：目的探讨采用溶剂解吸-气相色谱法同时测定工作场所空气中45种常见有机物的可行性。方法采用活性炭管采集工作场所空气中苯、1,2-二氯乙烷、正己烷和三氯乙烯等45种常见有机物,用二硫化碳解吸,经毛细管色谱柱分离,火焰离子化检测器检测。结果 45种常见有机物在选定的定量范围内线性关系良好,相关系数在0.999 92~0.999 99。方法检出限为0.03~0.30 mg/L,最低检出浓度范围为0.01~0.20 mg/m^3(以采集3.00 L空气计)。方法平均解吸效率为75.4%~105.7%,批内和批间精密度相对标准偏差分别为0.4%~6.7%和1.8%~7.9%,采样效率为91.9%~100.0%。结论本方法操作简单,灵敏度高,精密度好,适用于工作场所空气中45种常见共存有机物的同时测定。Objective To explore the feasibility of simultaneous detection of 45 kinds of common organic compounds in workplace air by solvent desorption-gas chromatography method.Methods A total of 45 kinds of common organic compounds such as benzene,1,2-dichloroeyhane,n-hexane and trichloroethylene in workplace air were collected with activated carbon tube and desorbed with carbon disulfide,separated by capillary chromatographic column,and detected with flame ionization detector.Results There was good linear relationship in the selected range.The correlation coefficients was 0.999 92-0.999 99.The detection limit was 0.03-0.30 mg/L and the minimum detectable concentration range was 0.01-0.20 mg/m^3（ sample volume was 3.00 L）.The average desorption efficiencies was 75.4%-105.7%.The within-run and between-run relative standard deviations were 0.4%-6.7% and 1.8%-7.9%,respectively.The sampling efficiency was 91.9%-100.0%.Conclusion The method is simple,high sensitivity and good precision,which can be used for simultaneous detection of 45 kinds of common coexisting organic compounds in workplace air.

关 键 词：工作场所 空气 苯 1 2-二氯乙烷 正己烷 三氯乙烯 溶剂解吸 气相色谱法 

分 类 号：R134.4[医药卫生—劳动卫生]