RT Journal Article SR Electronic T1 Rapid Spot Test for Stannous Tin Levels in 99mTc Kits JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 88 OP 89 VO 5 IS 2 A1 Hambright, P. A1 Adabi, A. A1 Reid, J. A1 Maitland, D. A1 Press, H. C. A1 Cherry, M. YR 1977 UL http://tech.snmjournals.org/content/5/2/88.abstract AB A rapid color spot test method to determine approximate levels of the stannous ion in 99mTc radiopharmaceutical kits has been developed using a light-activated porphyrin reduction process.