Table 1.
Dependence of the radiochemical yield (RCY) of [68Ga]Ga-CHX-A''-DTPA-DUPA-Pep on the peptide amount (concentration) and the reaction time at room temperature.
| Amount (µg) | RCY % (1 min) | RCY % (5 min) | RCY % (10 min) | RCY % (30 min) | RCY % (60 min) |
|---|---|---|---|---|---|
| 1 | 0.2 ± 0 .1 | 0.2 ± 0.0 | 0.3 ± 0.1 | 0.5 ± 0.1 | 0.6 ± 0.1 |
| 10 | 3.7 ± 0.3 | 14.0 ± 0.3 | 21.9 ± 0.8 | 41.3 ± 4.0 | 56.5 ± 5.8 |
| 25 | 29.0 ± 1.5 | 70.0 ± 1.3 | 85.6 ± 0.8 | 96.6 ± 0.3 | 97.1 ± 0.6 |
| 50 | 69.4 ± 0.9 | 95.4 ± 0.4 | 96.6 ± 0.6 | 96.6 ± 0.2 | 97.2 ± 0.7 |
| 100 | 95.1 ± 0.3 | 95.8 ± 0.1 | 96.1 ± 0.1 | 97.3 ± 0.1 | 97.7 ± 0.6 |