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Crossover Experiments for 1H to 2H Conversion Analyzed by ESI-MS (a.m.u.)a
| M+ | +5 | +10 | +15 | +20 | |
|---|---|---|---|---|---|
| 1H + 2py-d5 | 1 | 0 | 0 | 0 | 0 |
| 2H + 4py +4py-d5 | 1 | 0.11 | 0 | 0 | 0 |
| 1H + 1D + 4MTBD | 0.21 | 0.75 | 1 | 0.56 | 0.13 |
Relative abundances of heavy derivatives relative to the molecular ion peak (M+) observed by positive-mode ESI-MS 16 h after mixing at room temperature.
