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. 2021 Sep 21;26(18):5699. doi: 10.3390/molecules26185699

Table 2.

CP and RCP of [99mTc]TcO4− obtained at the end of the overall procedure of this work compared with the European pharmacopeia requirements for injection, other solvent-extraction-based techniques from the literature, and the quality of [99mTc]TcO4− eluted from a UTK generator (Curium). * EU Phar. = European Pharmacopoeia.

Parameters This Work EU Phar. *
[42,43,44,45]		 Other SE-Based Techniques [16,37] Generator Eluate
CP pH 5 4–8 6–7 6
Mo <5 ppm <10 ppm -
Al <5 ppm <5 ppm <10 ppm <5 ppm
MEK <0.0006% (v/v) <0.5% (v/v) <0.1% (v/v) -
RCP 99mTcO4− >98% ≥95% >99% >99%