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学科主题: 公共卫生
题名:
Determination of Gaseous and Particulate Trifluoroacetic Acid in Atmosphere Environmental Samples by Gas Chromatography-Mass Spectrometry
作者: Hu Xia1; Wu Jing1; Zhai Zi-Han1; Zhang Bo-Ya2; Zhang Jian-Bo1
关键词: Trifluoroacetic acid ; Sampling ; Annular denuder ; Derivation ; Gas chromatography-mass spectrometry ; Gas-particles partition coefficient
刊名: CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
发表日期: 2013-08-01
DOI: 10.3724/SP.J.1096.2013.30042
卷: 41, 期:8, 页:1140-1146
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Chemistry, Analytical
研究领域[WOS]: Chemistry
关键词[WOS]: AEROSOL EQUILIBRIUM ; WATER
英文摘要:

Trifluoroacetic acid (TFA) concentration was measured in air samples by a sampling device composed of annular denuders coupled with a quartz filter, which was efficient for collection and separation of gaseous and particulate TFA. Gaseous TFA was performed by means of annular denuders coated with alkaline solution, while particulate TFA was absorbed by quartz filters. TFA can be determined by gas chromatography. mass spectrometry after derivation with 2, 4-difluoroaniline. Calibration curves were linear with a correlation coefficient of 0. 9991. Detection limit of TFA was 66 ng/L, which was 31 pg/m(3) when sampling volume was 48 m(3). Recoveries of the TFA sampling device ranged between 98% and 105% with relative standard deviation (RSD) <= 3%. The developed method was applied for the determination of TFA in atmosphere samples collected in Peking University in Beijing in 2012. Total TFA concentrations ranged between 501 and 7447 pg/m(3). Concentrations of gaseous TFA were significantly higher than those of particulate, and the gas. particle partition coefficient of TFA decreased as air temperature rose.

语种: 中文
WOS记录号: WOS:000324172400002
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/53435
Appears in Collections:北京大学公共卫生学院_期刊论文

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作者单位: 1.Peking Univ, Sch Publ Hlth, Beijing 100191, Peoples R China
2.Peking Univ, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100871, Peoples R China

Recommended Citation:
Hu Xia,Wu Jing,Zhai Zi-Han,et al. Determination of Gaseous and Particulate Trifluoroacetic Acid in Atmosphere Environmental Samples by Gas Chromatography-Mass Spectrometry[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2013,41(8):1140-1146.
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