DOI: 10.1016/j.atmosenv.2014.05.004
Scopus记录号: 2-s2.0-84901063877
论文题名: A portable and inexpensive method for quantifying ambient intermediate volatility organic compounds
作者: Bouvier-Brown N ; C ; , Carrasco E ; , Karz J ; , Chang K ; , Nguyen T ; , Ruiz D ; , Okonta V ; , Gilman J ; B ; , Kuster W ; C ; , de Gouw J ; A
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 94 起始页码: 126
结束页码: 133
语种: 英语
英文关键词: Aerosol precursor
; HayeSep-Q adsorbent
; Intermediate volatility organic compounds
Scopus关键词: Aerosols
; Gas chromatography
; Mass spectrometry
; Volatile organic compounds
; Biogenic VOCs
; Experimental conditions
; Laboratory analysis
; Limit of detection
; Mixing ratios
; Performance characteristics
; Quantification methods
; Representative selection
; Air quality
; volatile organic compound
; aerosol composition
; air quality
; air sampling
; anthropogenic source
; biogenic emission
; concentration (composition)
; gas chromatography
; mixing ratio
; performance assessment
; volatile organic compound
; aerosol
; air quality
; air sampling
; ambient air
; article
; chemical reaction
; gas chromatography
; limit of detection
; mass spectrometry
; molecular weight
; priority journal
; secondary organic aerosol
; California
; Los Angeles [California]
; United States
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Volatile organic compounds (VOCs) and intermediate volatility VOCs (IVOCs) are gas-phase organic compounds which may participate in chemical reactions affecting air quality and climate. The development of an inexpensive, field-portable quantification method for higher molecular weight VOCs and IVOCs utilizing commercially available components could be used as a tool to survey aerosol precursors or identify and monitor air quality in various communities. We characterized the performance characteristics for the HayeSep-Q adsorbent with a representative selection of anthropogenic and biogenic VOC standards and optimized experimental conditions and procedures for field collections followed by laboratory analysis. All VOCs were analyzed using gas chromatography coupled with mass spectrometry. Precision (average 22%) and accuracy were reasonable and the limit of detection ranged from 10 to 80pmol/mol (ppt) for the studied compounds. The method was employed at the Los Angeles site during the CalNex campaign in summer 2010 and ambient mixing ratios agreed well (slope 0.69-1.06, R2 0.67-0.71) with measurements made using an in-situ GC-MS - a distinctly different sampling and quantification method. This new technique can be applied to quantify ambient biogenic and anthropogenic C8-C15 VOCs and IVOCs. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81291
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Chemistry and Biochemistry, Loyola Marymount University, 1 LMU Drive MS 8225, Los Angeles, CA 90045, United States; Chemical Sciences Division, National Oceanic and Atmospheric Administration (NOAA), Boulder, CO 80305, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO 80309, United States
Recommended Citation:
Bouvier-Brown N,C,, Carrasco E,et al. A portable and inexpensive method for quantifying ambient intermediate volatility organic compounds[J]. Atmospheric Environment,2014-01-01,94