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Table 5
Abundance of species retrieved from QMS data for 
irradiations, normalized to CH4 (± 2σ).
| Abundance | |||
|
|
|||
| Species | 300 K | 25 K TPD | |
|
|
|||
| H2 | 65.76 ± |
60.22 ± |
|
| CH4 | 1.00 ± 0.03 | 1.00 ± 0.05 | |
| C2H2 | }C2Hy | 0.211 ± 0.022 | 0.385 ± 0.038 |
| C2H4 | 0.271 ± 0.021 | 0.302 ± 0.035 | |
| C2H6 | 0.040 ± 0.018 | 0.089 ± 0.030 | |
| C3H4 | }C3Hy | <0.015 | <0.025 |
| C3H6 | 0.023 ± 0.017 | <0.027 | |
| C3H8 | 0.017 ± 0.017 | <0.027 | |
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