Production run | 1 | 2 | 3 | 4 |
---|---|---|---|---|
Zinc-68 mass | 315 mg | 230 mg | 240 mg | 300 mg |
Beam current & time | 50 µA, 30 min | 70 µA, 30 min | 80 µA, 2 h | 80 µA, 2 h |
Charge (µAh) | 25 | 36.2 | 163.4 | 164 |
GBq@EOP | 37 | 51 | 152 | 194 |
Appearance (Clear & colorless) | C&C | C&C | C&C | C&C |
γ-Spectrometry (Confirmed ID by 511 & 1077 keV) | Confirmed | Confirmed | ND | Confirmed |
T½ (62―74 min.) | 66.2 | 71.2 | 66.4 | 67.1 |
Solid Phase Extraction (> 90% of total radioactivity) | 91.3% | 95.0% | ND | 93.8% |
Precipitation with AgNO3 | WP | WP | WP | WP |
pH (< 2) | < 2 | < 2 | < 2 | < 2 |
Contents of Fe (< 10 µg/GBq) | 0.037 µg/GBq | 0.0077 µg/GBq | 0.0074 µg/GBq | 0.0036 µg/GBq |
Contents of Zn (< 10 µg/GBq) | 0.36 µg/GBq | 0.85 µg/GBq | 0.18 µg/GBq | 0.058 µg/GBq |
Bacterial endotoxins (< 175 IU/ V) | < 1.75 IU/mL | < 2 IU/mL | ND | < 1.85 IU/mL |
γ-Spectrometry (> 98% Ga-68) | 99.95% | 99.89% | 99.85% | 99.97% |
Contents of Ga-66/67 (< 2%) | 0.047% | 0.11% | 0.15% | 0.029% |
Other radionuclidic impurities (< 0.1%) | Not detected | Not detected | Not detected | Not detected |
TLC (> 95% Ga3+) | 100% | 99.9% | 100% (@ + 24 h) | 99.9% |