Establishment of Analysis Method for the Radiochemical Purity of 177Lu-EDTMP
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Abstract
The paper chromatography method for determination of 177Lu-EDTMP radiochemical purity was established. 177Lu-EDTMP was separated from impurities 177Lu3+ under alkaline conditions with V(water)∶V(ammonia)=50∶2 solution as developing reagent and Whatman No.540 as stationary phase. There was a better separation using this method, the Rf of 177Lu3+ and 177Lu-EDTMP were 0 and 0.9~1.0 respectively. The relative standard deviation was less than 1%. This method was simpler, quicker and suitable for the analysis of radiochemical purity of solution and kit composed of 177Lu-EDTMP.
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