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On Identification of C11–C13 Adamantanes in Crude Oils
Petroleum Chemistry ( IF 1.4 ) Pub Date : 2021-09-22 , DOI: 10.1134/s096554412109005x
G. A. Gadzhiev 1 , M. V. Giruts 1 , D. S. Vylekzhanina 1 , E. A. Burov 1 , G. N. Gordadze 1
Affiliation  

Abstract

The paper demonstrates that mass chromatograms with the characteristic ions (m/z 135, 149, and 163) of C11–C13 petroleum alkyladamantanes contain C10–C12 monoaromatics in addition to protoadamantanes. The monoaromatic hydrocarbons were isolated from a 150–250°C fraction of marine oil by preparative high-performance liquid chromatography with a refractometric detector, then analyzed by chromatography-mass spectrometry. The characteristic ions of mono-, di-, and trialkyl-substituted adamantanes (m/z 135, 149 and 163) were found to be also isotopes of molecular ions of C10, C11, and C12 monoaromatics with molecular weights of 134, 148, and 162, respectively. Thus, crude oils have significantly lower resources of protoadamantane hydrocarbons than previously thought.



中文翻译:

原油中C11-C13金刚烷的鉴别

摘要

该论文证明,具有C 11 –C 13石油烷基金刚烷的特征离子(m/z 135、149和 163)的质谱图除原金刚烷外还包含 C 10 –C 12 单芳烃。通过配备折光检测器的制备型高效液相色谱法从 150-250°C 的海洋油馏分中分离出单芳烃,然后通过色谱-质谱法进行分析。发现单、二和三烷基取代的金刚烷(m/z 135、149 和 163)的特征离子也是 C 10、C 11和 C 12分子离子的同位素分子量分别为 134、148 和 162 的单芳烃。因此,原油的原金刚烷烃资源比以前认为的要少得多。

更新日期:2021-09-23
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