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)

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Compound</td><td class="align_center">δ13C (V-PDB, ‰)</td><td class="align_center">Peak area (mV)</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">CH4</td><td class="align_center">-48.20</td><td class="align_center">1.02</td></tr><tr><td class="align_left">C2H6</td><td class="align_center">-44.31</td><td class="align_center">1.10</td></tr><tr><td class="align_left">C3H8</td><td class="align_center">-41.33</td><td class="align_center">0.99</td></tr><tr><td class="align_left">i-C4H10</td><td class="align_center">—</td><td class="align_center">—</td></tr><tr><td class="align_left">n-C4H10</td><td class="align_center">-37.28</td><td class="align_center">0.91</td></tr><tr><td class="align_left">i-C5H12</td><td class="align_center">—</td><td class="align_center">—</td></tr><tr><td class="align_left">n-C5H12</td><td class="align_center">-35.42</td><td class="align_center">0.43</td></tr><tr><td class="align_left">C6H14</td><td class="align_center">—</td><td class="align_center">—</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Composition and peak area of natural gas sample from XML.</div>

Geofluids

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Table 2

Table 2: 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)

Table 2 | 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) 