Interpretation of volatile organic compound measurements by   proton-transfer-reaction mass spectrometry over the deepwater horizon   oil spill

doi:10.1016/j.ijms.2013.11.006

CORC > 北京大学 > 环境科学与工程学院

	Interpretation of volatile organic compound measurements by proton-transfer-reaction mass spectrometry over the deepwater horizon oil spill
	Yuan, Bin ; Warneke, Carsten ; Shao, Min ; de Gouw, Joost A.
刊名	国际质谱测定法杂志
	2014
关键词	PTR-MS VOCs identification Crude oil Gasoline Diesel Oil spill PTR-MS MEASUREMENTS FLOW-RATE HYDROCARBONS VALIDATION CAMPAIGN O-2(+) H3O+ NO+ AIR
DOI	10.1016/j.ijms.2013.11.006
英文摘要	A proton-transfer-reaction mass spectrometer (PTR-MS) was used onboard the NOAA WP-3D aircraft for atmospheric measurements over the Deepwater Horizon (DWH) oil spill in the Gulf of Mexico in 2010. A mass spectrum obtained by PTR-MS downwind from the accident site revealed the presence of a complex mixture of volatile organic compounds (VOCs). Here, we interpret this mass spectrum by comparing it with mass spectra of crude oil, gasoline and diesel samples measured in the laboratory. Aromatics were less abundant over the spill than from crude oil samples, due to the dissolution of these species in the seawater. The mass spectra obtained from aircraft measurements and crude oil samples both show strong signals at masses with mass-to-charge ratio (m/z) of 14 x n +/- 1, including 43, 57, 69, 71, 83, 85, 97 and 111Yamu. PTR-MS coupled with a gas chromatograph was used to identify major mass signals from crude oil samples. Cycloalkanes are important contributors to the signals of mass m/z 14 x n +/- 1, especially for masses 69, 83,97 and 111 amu. Aromatics could be interpreted from their specific masses without significant interference for crude oil vapors, but the interferences to benzene from higher aromatics can be significant as crude oil evaporates. The interpretation of DWH mass spectrum is not only helpful in understanding the atmospheric emissions associated with the DWH oil spill, but also for the interpretation of PTR-MS measurements in urban air, near natural oil seeps and oil as well as natural gas extraction activities. Published by Elsevier B.V.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000330261100005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Physics, Atomic, Molecular & Chemical; Spectroscopy; SCI(E); 16; ARTICLE; bin.yuan@noaa.gov; 43-48; 358
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/158274]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Yuan, Bin,Warneke, Carsten,Shao, Min,et al. Interpretation of volatile organic compound measurements by proton-transfer-reaction mass spectrometry over the deepwater horizon oil spill[J]. 国际质谱测定法杂志,2014.
APA	Yuan, Bin,Warneke, Carsten,Shao, Min,&de Gouw, Joost A..(2014).Interpretation of volatile organic compound measurements by proton-transfer-reaction mass spectrometry over the deepwater horizon oil spill.国际质谱测定法杂志.
MLA	Yuan, Bin,et al."Interpretation of volatile organic compound measurements by proton-transfer-reaction mass spectrometry over the deepwater horizon oil spill".国际质谱测定法杂志 (2014).