Entry | Metal ion | Longitudinal relaxation time (T1)/s | 1'/β | |
1' | β | |||
1 | none | 6.97 | 3.93 | 1.77 |
2 | Ca2+ | 4.72 | 2.55 | 1.85 |
3 | Al3+ | 3.36 | 2.54 | 1.32 |