TY - JOUR
T1 - The paper spot test
T2 - A rapid method for quantitating stannous concentrations in radiopharmaceutical kits
AU - Zimmer, A. M.
AU - Spies, S. M.
PY - 1981
Y1 - 1981
N2 - We have developed a simplified, semiquantitative test for the determination of stannous tin in pyrophosphate and other tin-containing radiopharmaceuticals, excluding those stabilized with ascorbic acid and MAA preparations. the test involves the formation and disappearance of a positive red color complex in the presence of Sn(II) and an acidified porphyrin solution. With this technique, the time of spot disappearance is directly proportional to the Sn(II) concentration spotted. The procedure is easy to use, requiring only a high-intensity light source (30-watt light bulb) and a timing device. The test is accurate, reproducible, and sensitive to Sn(II) levels as low as 40 μg/ml. Because the procedure is rapid (requiring less than 5 min), it can easily be incorporated into the routine radiopharmaceutical quality-control program of any nuclear medicine facility.
AB - We have developed a simplified, semiquantitative test for the determination of stannous tin in pyrophosphate and other tin-containing radiopharmaceuticals, excluding those stabilized with ascorbic acid and MAA preparations. the test involves the formation and disappearance of a positive red color complex in the presence of Sn(II) and an acidified porphyrin solution. With this technique, the time of spot disappearance is directly proportional to the Sn(II) concentration spotted. The procedure is easy to use, requiring only a high-intensity light source (30-watt light bulb) and a timing device. The test is accurate, reproducible, and sensitive to Sn(II) levels as low as 40 μg/ml. Because the procedure is rapid (requiring less than 5 min), it can easily be incorporated into the routine radiopharmaceutical quality-control program of any nuclear medicine facility.
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M3 - Article
C2 - 6260912
AN - SCOPUS:0019503295
SN - 0161-5505
VL - 22
SP - 465
EP - 467
JO - Journal of Nuclear Medicine
JF - Journal of Nuclear Medicine
IS - 5
ER -