RT Journal Article
SR Electronic
T1 Determination of Radionuclide Impurities in Tc-99m: A Rapid Pulse Height Analysis Technique
JF Journal of Nuclear Medicine Technology
JO J. Nucl. Med. Technol.
FD Society of Nuclear Medicine
SP 84
OP 87
VO 7
IS 2
A1 Ackerhalt, Robert E.
A1 Sondel, James A.
YR 1979
UL http://tech.snmjournals.org/content/7/2/84.abstract
AB We have developed a simple and rapid procedure for determining levels of multiple radionuclide impurities in Tc-99m generator eluates before use in patients. The technique combines the use of a low gamma energy filter comprised of layers of lead, cadmium, and copper to reduce the radiation from Tc-99m—with pulse height analysis of the transmitted high energy photons from common impurities such as Ru-103, I-131, and Mo-99. The procedure, which employs a multichannel analyzer and subsequent calculations, can be performed in almost the same time required for the current technique using isotope calibrators.