Determination of <i>δ</i><sup>13</sup>C of Trace Hydrocarbons in Natural Gas Using Syringe Solid Phase Extraction (SSPE) Coupled with Gas Chromatography/Isotope Ratio Mass Spectrometry (GC/IRMS)

<div>Diagram of SSPE structure and its operation procedure. The SSPE process has four steps: (1) heat the metal tube to ensure the adsorbent is completely purified; (2) extract the target hydrocarbon compounds through the natural gas sample; in this step, the sorbent is exposed to the sample and target analytes are separated from the sample matrix and adsorbed on the sorbents; (3) desorb the hydrocarbon compounds with the microfurnace; and (4) inject the hydrocarbons into the GC inlet.</div>

Geofluids

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Figure 1

Figure 1: Determination of <i>δ</i><sup>13</sup>C of Trace Hydrocarbons in Natural Gas Using Syringe Solid Phase Extraction (SSPE) Coupled with Gas Chromatography/Isotope Ratio Mass Spectrometry (GC/IRMS) 

Figure 1 | Determination of δ13C of Trace Hydrocarbons in Natural Gas Using Syringe Solid Phase Extraction (SSPE) Coupled with Gas Chromatography/Isotope Ratio Mass Spectrometry (GC/IRMS) 