Characterization and use of a gamma radiation TLC scanner for radiochemical purity measurements of radiopharmaceutical kit preparations of99mTc(dmpe)2Cl 2 +

A simple, low cost TLC scanner system for the characterization of -emitting radiopharmaceuticals is described. The TLC scanner has a linear response range of 0.074 Mbq up to 2.94 Mbq. The accuracy and reproducibility of measurement is better than ±5% (relative). The utility of this TLC scanner system is demonstrated by application to the radioanalytical evaluation of^99mTc(dmpe)₂Cl ₂ ⁺ preparations. A comparison with HPLC radioanalytical separations is made.