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The Rf values of chemical impurities and DOTA-conjugates.
| Chromatography system | Chemical species | Mobile phase | Stationary phase | Rf |
|---|---|---|---|---|
| 1 | 67Ga-DOTA-trastuzumab | 10% Ammonium acetate:methanol (1:1) | Silicagel | 0.0 |
| 67Ga2+ | // | // | 0.0 | |
| 67Ga-DOTA | // | // | 0.3 | |
| 2 | 67Ga-DOTA-trastuzumab | 1 mM DTPA (pH. 5) | Whatman No. 2 | 0.0 |
| 67Ga2+ | // | // | 0.9 | |
| 67Ga-DOTA | // | // | 0.0 |
