Test | Specification of 161TbCl3 | Specification of 177LuCl3 (EndolucinBeta)a |
---|---|---|
Radioactivity concentration | 11–21 MBq/μL | 36–44 MBq/μL |
Appearance | Clear and colorless solution | Clear and colorless solution |
pH | 1–2 | 1–2 |
Radiolabeling yield HPLC based on radiolabeling with161Tb of DOTANOC, molar ratio 1:4 (180 MBq/nmol) | > 99% | > 99% |
Identity 161Tb (γ-ray spectrometry) | 48.9 keV γ-line 74.6 keV γ-line | 113 keV γ-line 208 keV γ-line |
Radionuclidic purity (γ-ray spectrometry) | 160Tb ≤ 0.007% | 175Yb ≤ 0.01% |
Radiochemical purity (radio-TLC) | > 99% | > 99% |