Table 1
List of all the experiments. Frozen mixtures are deposited and irradiated at 14-18 K.
| Experiment | H2O:CH3OH:NH3 | H+ energy | Dose min. | Dose max. |
|---|---|---|---|---|
| label | mixture ratio | (keV) | (eV/16u) | |
| 3_200_L | 3:1:1 | 200 | 2 | 23 |
| 3_200_H | 3:1:1 | 200 | 16 | 80 |
| 1 200 L | 1:1:1 | 200 | 2 | 27 |
| 1_200_H | 1:1:1 | 200 | 19 | 93 |
| 3_40 | 3:1:1 | 40 | 7 | 54 |
| 1_40 | 1:1:1 | 40 | 26 | 103 |
Notes. Experiments are labelled as follows: the first number gives the amount of H2O with respect to CH3OH and NH3 in the mixture; the second number gives the energy of the H+ beam used for irradiation. For replicate experiments, the last letter represents the range of dose used; L: low dose; H: high dose.
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