DOI: 10.1016/j.atmosenv.2014.11.011
Scopus记录号: 2-s2.0-84910011540
论文题名: FT-IR quantification of the carbonyl functional group in aqueous-phase secondary organic aerosol from phenols
作者: George K ; M ; , Ruthenburg T ; C ; , Smith J ; , Yu L ; , Zhang Q ; , Anastasio C ; , Dillner A ; M
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 100 起始页码: 230
结束页码: 237
语种: 英语
英文关键词: Carboxylic acids
; Fourier transform infrared spectroscopy
; Phenol
; SOA
Scopus关键词: Aerosols
; Carboxylic acids
; Chromatography
; Fourier transform infrared spectroscopy
; Ion chromatography
; Ketones
; Mixtures
; Fourier transform infrared
; Hydroxyl radicals
; Organic species
; Particulate mass
; Phase reaction
; Secondary organic aerosols
; SOA
; Spectroscopic technique
; Phenols
; 3,4 dimethoxybenzaldehyde
; adipic acid
; aldehyde
; benzoic acid
; carbonyl derivative
; carboxylic acid
; ester
; guaiacol
; hydroxyl radical
; ketone
; phenol
; phenol derivative
; succinic acid
; syringol
; unclassified drug
; aerosol composition
; aerosol formation
; carbonyl compound
; FTIR spectroscopy
; oxidant
; phenol
; Article
; covalent bond
; hydrogen bond
; infrared spectroscopy
; secondary organic aerosol
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: Recent findings suggest that secondary organic aerosols (SOA) formed from aqueous-phase reactions of some organic species, including phenols, contribute significantly to particulate mass in the atmosphere. In this study, we employ a Fourier transform infrared (FT-IR) spectroscopic technique to identify and quantify the functional group makeup of phenolic SOA. Solutions containing an oxidant (hydroxyl radical or 3,4-dimethoxybenzaldehyde) and either one phenol (phenol, guaiacol, or syringol) or a mixture of phenols mimicking softwood or hardwood emissions were illuminated to make SOA, atomized, and collected on a filter. We produced laboratory standards of relevant organic compounds in order to develop calibrations for four functional groups: carbonyls (C. O), saturated C-H, unsaturated C-H and O-H. We analyzed the SOA samples with transmission FT-IR to identify and determine the amounts of the four functional groups. The carbonyl functional group accounts for 3-12% of the SOA sample mass in single phenolic SOA samples and 9-14% of the SOA sample mass in mixture samples. No carbonyl functional groups are present in the initial reactants. Varying amounts of each of the other functional groups are observed. Comparing carbonyls measured by FT-IR (which could include aldehydes, ketones, esters, and carboxylic acids) with eight small carboxylic acids measured by ion chromatography indicates that the acids only account for an average of 20% of the total carbonyl reported by FT-IR. © 2014 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82149
Appears in Collections: 气候变化事实与影响
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作者单位: Crocker Nuclear Laboratory, University of California, Davis, CA, United States
Recommended Citation:
George K,M,, Ruthenburg T,et al. FT-IR quantification of the carbonyl functional group in aqueous-phase secondary organic aerosol from phenols[J]. Atmospheric Environment,2015-01-01,100