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Table 4 Results of corresponding HPLC measurements at 3 different time points in comparison with SPE- method results from table 3. The SPC in force today does not mentioned which impurities are attributed to the individually eluted fractions on the SEP-PAK columns and the (99mTcO2)n is not taken into account (not measured).

From: A new two-strip TLC method for the quality control of technetium-99m mercaptoacetyl-triglycine (99mTc-MAG3)

  Hydrophilic compounds 99mTc- MAG3 Lipophilic compounds
[%] [%] [%]
HPLC 1 1.5 97.2 1.3
HPLC 2 0.6 98.0 1.4
HPLC 3 1.1 96.9 2.0