GC Determination of 9 Haloacetic Acids in Air and Exhaust Gas with Absorption Liquid Sampling
摘 要
以40 mL的0.1 mol·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0.5 L·min-1,采集时间为40 min,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3.0~400.0 μg·m-3,检出限(3S/N)为0.35~2.03 μg·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%。
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 was 40 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 3.0-400.0 μg·m-3 with detection limits (3S/N) in the range of 0.35-2.03 μg·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%.
中图分类号 O657.7 DOI 10.11973/lhjy-hx201908003
所属栏目 试验与研究
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)
收稿日期 2019/4/2
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备注王新娟,高级工程师,博士,主要从事环境科学研究与管理工作
引用该论文: 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 Analysis, 2019, 55(8): 882~886
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, 55(8): 882~886
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【3】肖洋,王新娟,韩伟.气相色谱法测定不同水质中的二氯乙酸和三氯乙酸[J].理化检验-化学分册, 2014,50(8):979-982.
【4】ALHOOSHANI K, BASHEER C, KAUR J, et al. Electromembrane extraction and HPLC analysis of haloacetic acids and aromatic acetic acids in wastewater[J]. Talanta, 2011,86:109-113.
【5】LIU Y J, MOU S F. Determination of trace levels of haloacetic acids and perchlorate in drinking water by ion chromatography with direct injection[J]. Journal of Chromatography A, 2003,997(1/2):225-235.
【6】CARDADOR M J, GALLEGO M. Eco-friendly microextraction method for the quantitative speciation of 13 haloacetic acids in water[J]. Journal of Chromatography A, 2014,1340:15-23.
【7】刘玉灿,段晋明,李伟.气相色谱-三重四级杆质谱联用法同时检测水中10种卤乙酸[J].分析化学, 2014,42(1):77-82.
【8】HU S Y, GONG T T, MA J, et al. Simultaneous determination of iodinated haloacetic acids and aromatic iodinated disinfection byproducts in waters with a new SPE-HPLC-MS/MS method[J]. Chemosphere, 2018,198:147-153.
【9】刘肖,史亚利,王碗,等.离子色谱-串联电喷雾质谱法检测自来水中二氯乙酸和三氯乙酸[J].分析化学, 2007,35(2):221-226.
【10】邵生文,梁禄.作业场所空气中氯乙酸的气相色谱测定方法[J].工业卫生与职业病, 2000,26(2):120-122.
【11】张建军.离子色谱法测定环境空气中氯乙酸研究[J].环境科学与管理, 2013,38(10):140-142.
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