Effects of volatilization on the hydrogen isotope composition of selected n-alkanes
Effects of volatilization on the hydrogen isotope composition of selected n-alkanes
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挥发对选定正构烷烃氢同位素组成的影响
DOI：
10.1016/j.atmosres.2013.05.012
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发表时间：
2013-10
影响因子：
5.5
通讯作者：
Ling Mu
中科院分区：
文献类型：
--
作者：
Junji Cao;Xiaofeng Liu;Jianqiang Zhang;Ling Mu
采用GC-IRMS方法测定了正构烷烃C15 ~ 10 ~ C32的氢同位素组成，研究了蒸发过程中氢同位素的行为。n-C15-C19的氢同位素分馏范围为− 8.5至− 22.5‰，表明同位素较重的有机化合物优先蒸发。n-C16 ~ C18的氢同位素分馏速率随时间变化不明显（平均速率分别为1.1、0.5和0.3‰/d），符合Rayleigh模型。虽然不太确定，氢同位素分馏n-C19显然也遵循瑞利趋势。关于分馏率的信息可能有助于确定环境中有机物质的主要衰减和降解过程。结果还突出了潜在的应用同位素分馏因子，这是由回归分析确定的，调查有机物质在环境中的行为。
The hydrogen isotope composition ofn-C15ton-C32n-alkanes was measured by GC–IRMS to investigate the behavior of H isotopes during evaporation. The H isotope fractionation ofn-C15ton-C19ranged from − 8.5 to − 22.5‰, demonstrating the preferential vaporization of the isotopically heavier organic compounds. The H isotope fractionation rates ofn-C16ton-C18showed 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 inn-C19also 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.
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影响因子：
3.4
作者：
Yi Wang;Y. Huang
通讯作者：
Yi Wang;Y. Huang
影响因子：
11.4
作者：
L. Zwank;M. Berg;M. Elsner;T. Schmidt;R. Schwarzenbach;S. Haderlein
通讯作者：
L. Zwank;M. Berg;M. Elsner;T. Schmidt;R. Schwarzenbach;S. Haderlein
影响因子：
11.4
作者：
J. R. Gray;G. Lacrampe-Couloume;D. Gandhi;K. Scow;Ryan D. Wilson;D. Mackay;B. S. Lollar
通讯作者：
J. R. Gray;G. Lacrampe-Couloume;D. Gandhi;K. Scow;Ryan D. Wilson;D. Mackay;B. S. Lollar
影响因子：
11.4
作者：
S. Mancini;G. Lacrampe-Couloume;H. Jonker;B. V. van Breukelen;J. Groen;F. Volkering;B. S. Lollar
通讯作者：
S. Mancini;G. Lacrampe-Couloume;H. Jonker;B. V. van Breukelen;J. Groen;F. Volkering;B. S. Lollar
影响因子：
11.4
作者：
Hunkeler, D;Aravena, R;Diao, X
通讯作者：
Diao, X