title: Effect of milking efficiency on 99Tc content of 99mTc derived from 99mTc generators.
abstract: Calculation was made of the effect of milking efficiency on the 99Tc content of 99mTc derived from 99mTc-generators. Reduced milking efficiency was shown to lead to an increase in the 99Tc/99mTc ratio. Levels of 99Tc were determined in samples from both column and solvent extraction generators using a HPLC procedure. It is recommended that producers of 99mTc from solvent extraction generators should ensure that complete generator milking is performed daily.
mesh_terms: D008722:Methods; D011876:Radionuclide Generators; D013667:Technetium
chemical_list: D013667:Technetium