| 吸收液采样-气相色谱法测定空气和废气中9种卤乙酸 |
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| 引用本文： | 王新娟,肖洋,韩伟,王琛.吸收液采样-气相色谱法测定空气和废气中9种卤乙酸[J].理化检验(化学分册),2019(8):882-886. |
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| 作者姓名： | 王新娟 肖洋 韩伟 王琛 |
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| 作者单位： | 淄博市生态环境质量控制服务中心;山东省淄博生态环境监测中心;齐鲁工业大学环境科学与工程学院 |
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| 基金项目： | 山东省重点研发计划资助项目（2017GSF17116）;淄博市科技发展计划资助项目（2017kj010080,2015kj010071） |
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| 摘 要： | 以40mL的0.1mol·L^-1氢氧化钠溶液为吸收液,吸收采集空气或废气中9种卤乙酸,采气流量为0.5L·min^-1,采集时间为40min,采用气相色谱法测定吸收液中9种卤乙酸的含量,用DB-1701毛细管色谱柱分离,电子捕获检测器测定。以1,2,3-三氯丙烷为内标,9种卤乙酸的线性范围均为3.0~400.0μg·m^-3,检出限(3S/N)为0.35~2.03μg·m^-3。加标回收率为73.7%~117%,测定值的相对标准偏差(n=6)为3.4%~8.4%。
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| 关 键 词： | 气相色谱法 卤乙酸 空气 废气 吸收液 |
GC Determination of 9 Haloacetic Acids in Air and Exhaust Gas with Absorption Liquid Sampling |
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| WANG Xinjuan,XIAO Yang,HAN Wei,WANG Chen.GC Determination of 9 Haloacetic Acids in Air and Exhaust Gas with Absorption Liquid Sampling[J].Physical Testing and Chemical Analysis Part B:Chemical Analgsis,2019(8):882-886. |
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| Authors: | WANG Xinjuan XIAO Yang HAN Wei WANG Chen |
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| Institution: | (Zibo Ecological and Environmental Quality Control Service Center,Zibo 255043,China;Zibo Ecological and Environmental Monitoring Center in Shandong Province,Zibo 255043,China;College of Environmental Sciences and Engineering,Qilu University of Technology,Jinan 250013,China) |
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| Abstract: | 0.1 mol·L^-1 sodium hydroxide solution(40 mL)was used as absorption liquid to absorb and collect 9 haloacetic acids in air or exhaust gas.The gas flow rate was 0.5 L·min^-1 and the collection time was40 min.GC was applied to the determination of 9 haloacetic acids in absorption liquid.The analytes were separated on DB-1701 capillary chromatographic column and detected by ECD.1,2,3-Trichloropropane was used as internal standard.Linearity ranges of the 9 haloacetic acids were found in the same range of 3.0-400.0μg·m^-3 with detection limits(3 S/N)in the range of 0.35-2.03μg·m^-3.Values of recovery found by standard addition method were in the range of 73.7%-117%,and values of RSDs(n=6)of determined values were in the range of 3.4%-8.4%. |
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| Keywords: | GC haloacetic acid air exhaust gas absorption liquid |
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