Table 1. Radiolytic yields of the degradation products formed in the gas phase.
| G (μmol J−1)μ-GC | G (μmol J−1)EI/MS | |
|---|---|---|
| CO2 | 0.21 | 0.15 |
| Ethane (C2H6) | 0.10 | |
| H2 | 0.13 | 0.10 |
| CO | 0.05 | 0.06 |
| Ethylene (C2H4) | 0.04 | |
| Methane (CH4) | 0.08 | 0.04 |
| Formic acid (HCOOH) | 0.03 | |
| Diethyl ether (C2H5OC2H5) | 0.02 | |
| Acetaldehyde (CH3CHO) | 0.02 | |
| Propane (C3H8) | 0.01 | |
| Butane (C4H10) | 0.01 |
GC, gas chromatography; EI/MS, electron impact-magnetic sector mass spectrometry.
They are expressed in μmol J−1 of gas produced after DEC irradiation and measured by both μ-GC (left) and EI/MS (right) techniques. The uncertainty bars are estimated to be 10% for the gas chromatography technique and 20% in the other case. The radiolytic yields can also be expressed in molecule per 100 eV by dividing the value obtained in μmol J−1 by the 1.036 10−1 factor.