DOI: 10.1016/j.atmosenv.2014.10.015
Scopus记录号: 2-s2.0-84908226873
论文题名: A new agent for derivatizing carbonyl species used to investigate limonene ozonolysis
作者: Wells J ; R ; , Ham J ; E
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 99 起始页码: 519
结束页码: 526
语种: 英语
英文关键词: Derivatization
; Oxygenated organic compounds
; Ozone
; Reaction products
Scopus关键词: Reaction products
; Derivatizations
; Ozonolysis
; Ozone
; carbonyl derivative
; cyclohexane
; limonene
; oxime derivative
; aqueous solution
; carbonyl compound
; gas phase reaction
; hydrocarbon
; radical
; reaction kinetics
; scavenging (chemistry)
; aqueous solution
; Article
; chromatography
; derivatization
; gas
; mass spectrometry
; molecular weight
; oxidation
; ozonolysis
; particulate matter
; reaction analysis
; reaction time
; stereoisomerism
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: A new method for derivatizing carbonyl compounds is presented. The conversion of a series of dicarbonyls to oximes in aqueous solution and from gas-phase sampling was achieved using O-tert-butylhydroxylamine hydrochloride (TBOX). Some advantages of using this derivatization agent include: aqueous reactions, lower molecular weight oximes, and shortened oxime-formation reaction time. Additionally, the TBOX derivatization technique was used to investigate the carbonyl reaction products from limonene ozonolysis. With ozone (O3) as the limiting reagent, four carbonyl compounds were detected: 7-hydroxy-6-oxo-3-(prop-1-en-2-yl)heptanal; 3-Isopropenyl-6-oxoheptanal (IPOH), 3-acetyl-6-oxoheptanal (3A6O) and one carbonyl of unknown structure. Using cyclohexane as a hydroxyl (OH) radical scavenger, the relative yields (peak area) of the unknown carbonyl, IPOH, and 3A6O were reduced indicating the influence secondary OH radicals have on limonene ozonolysis products. The relative yield of the hydroxy-dicarbonyl based on the chromatogram was unchanged suggesting it is only made by the limonene+O3 reaction. The detection of 3A6O using TBOX highlights the advantages of a smaller molecular weight derivatization agent for the detection of multi-carbonyl compounds. The use of TBOX derivatization if combined with other derivatization agents may address a recurring need to simply and accurately detect multi-functional oxygenated species in air. © 2014 Published by Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80542
Appears in Collections: 气候变化事实与影响
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作者单位: Exposure Assessment Branch, Health Effects Laboratory Division, National Institute for Occupational Safety and Health, 1095 Willowdale Road, Morgantown, WV, United States
Recommended Citation:
Wells J,R,, Ham J,et al. A new agent for derivatizing carbonyl species used to investigate limonene ozonolysis[J]. Atmospheric Environment,2014-01-01,99