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Effects of volatilization on the hydrogen isotope composition of selected n-alkanes
Bai, HL (Bai, Huiling)[ 1 ]; Peng, L (Peng, Lin)[ 1 ]; Cao, JJ (Cao, Junji)[ 2 ]; Liu, XF (Liu, Xiaofeng)[ 1 ]; Zhang, JQ (Zhang, Jianqiang)[ 1 ]; Mu, L (Mu, Ling)[ 1 ]
2013-10-30
Source PublicationAtmospheric Research
Volume132-133Issue:2(SI)Pages:164-172
Subtype期刊论文
Abstract

The hydrogen isotope composition of n-C15 to n-C32 n-alkanes was measured by GC-IRMS to investigate the behavior of H isotopes during evaporation. The H isotope fractionation of n-C15 to n-C19 ranged from -8.5 to -22.5‰, demonstrating the preferential vaporization of the isotopically heavier organic compounds. The H isotope fractionation rates of n-C16 to n-C18 showed no obvious fluctuations with time (average rates were 1.1, 0.5 and 0.3‰ per day, respectively); this indicated that fractionation followed the Rayleigh model. Although less conclusive, the fractionation of H isotopes in n-C19 also apparently followed the Rayleigh trend. Information on fractionation rates may be useful for identifying the dominant attenuation and degradation processes for organic substances in the environment. The results also highlight potential applications of isotope fractionation factors, which were determined by regression analysis, for investigations into the behavior of organic substances in the environment.

KeywordN-alkanes Evaporation Hydrogen Isotope Composition Isotope Fractionation Rate
DOI10.1016/j.atmosres.2013.05.012
Indexed BySCI ; EI
Language英语
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9889
Collection粉尘与环境研究室
Corresponding AuthorPeng, L (Peng, Lin)[ 1 ]
Affiliation1.College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China
Recommended Citation
GB/T 7714
Bai, HL ,Peng, L ,Cao, JJ ,et al. Effects of volatilization on the hydrogen isotope composition of selected n-alkanes[J]. Atmospheric Research,2013,132-133(2(SI)):164-172.
APA Bai, HL ,Peng, L ,Cao, JJ ,Liu, XF ,Zhang, JQ ,&Mu, L .(2013).Effects of volatilization on the hydrogen isotope composition of selected n-alkanes.Atmospheric Research,132-133(2(SI)),164-172.
MLA Bai, HL ,et al."Effects of volatilization on the hydrogen isotope composition of selected n-alkanes".Atmospheric Research 132-133.2(SI)(2013):164-172.
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