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>Validation of SSPE. DI: direct injection for original standard natural gas sample; SPME: solid phase microextraction for diluted standard natural gas; SSPE: syringe solid phase for diluted standard natural gas.</div>

Geofluids

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Figure 4

Figure 4: 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 4 | 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) 