Research Article
Method for Analyzing the Molecular and Carbon Isotope Composition of Volatile Hydrocarbons (C1–C9) in Natural Gas
Figure 5
Chromatograms of the light hydrocarbons present in the (a) in-lab standard natural gas and (b) analytes extracted using SPME. 1, Methane; 2, ethane; 3, propane; 4, isobutane; 5, n-butane; 6, neopentane; 7, isopentane; 8, n-pentane; 9, methyl cyclopentane; 10, cyclohexane; 11, 2-methylpentane; 12, 3-methylpentane; 13, n-hexane; 14, 2,2/3,3-dimethyl pentane; 15, methyl cyclohexane; 16, 2/3-methylhexane +2,3-dimethyl pentane; 17, n-heptane; 18, benzene; 19, n-octane; 20, methylbenzene; 21, n-nonane; 22, ethylbenzene; 23, p-xylene; 24, o-xylene.
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| (b) |