Schwochau K, Linse KH, Su ZF. Synthesis, characterization and biodistribution of the cationic technetium(II) 1,10-phenanthroline chelate.
INTERNATIONAL JOURNAL OF RADIATION APPLICATIONS AND INSTRUMENTATION. PART A, APPLIED RADIATION AND ISOTOPES 1992;
43:1079-82. [PMID:
1330986 DOI:
10.1016/0883-2889(92)90047-i]
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Abstract
[99Tc(phen)3]Cl2 was synthesized by reduction of pertechnetate with sodium borohydride in the presence of an excess of 1,10-phenanthroline and characterized by FAB mass spectrometry, magnetic susceptibility measurements, and i.r./vis/u.v. spectrophotometry. For biodistribution evaluation in mice [99mTc(phen)3]Cl2 could be obtained in a radiochemical purity of 92.5% using a similar procedure. The rather hydrophilic chelate was predominantly excreted by the kidneys. Its low blood retention resulted in a heart/blood activity ratio of 4.2 at 100 min post-injection.
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