Table 2.
Produced activities at end of synthesis (EOS, not decay corrected) and associated AMA and purities for [68Ga]Ga-PSMA-11 and [68Ga]Ga-DOTATATE. n: Amount of peptide used for radiolabelling. TLC and TLC (colloid) denominates the RCP of [68Ga]Ga-PSMA-11 from analysis for free and colloid gallium-68, respectively
[68Ga]Ga-PSMA-11 | |||||
Activity at EOS | n | AMA at EOS | RCP (HPLC) | TLC | TLC (colloid) |
GBq | nmol | MBq/nmol | % | % | % |
39.8 | 100 | 398 | 99.9 | 100 | 99.7 |
42.9 | 100 | 429 | 99.8 | 100 | 99.9 |
72.2 | 100 | 722 | 98.2 | 100 | 99.8 |
Average: | 99.3 | 100 | 99.8 | ||
Std.dev.: | 1.0 | 0 | 0.1 | ||
[68Ga]Ga-DOTATATE | |||||
Activity at EOS | n | AMA at EOS | RCP (HPLC) | ITLC | |
GBq | nmol | MBq/nmol | % | % | |
0.87 | 34.8 (50 µg) | 25 | 97.3 | 98.4 | |
0.88 | 34.8 (50 µg) | 25 | 98.2 | 98.4 | |
0.75 | 34.8 (50 µg) | 23 | 99.7 | 99.6 | |
3.22 | 348 (500 µg) | 9.2 | 95.4 | 97.1 | |
Average: | 97.7 | 98.4 | |||
Std.dev.: | 2.2 | 1.2 |