MATERIALS AND METHODS Production and purification of DL-[carboxyl-11C] and DL-[carboxyl-'4C]
tryptophan. Oak Ridge Na tional Laboratory's 86-inch cyclotron was used to …

Previous studies of the effect of scandium on the tissue distribution of Ga-67 suggest that Ga-67
makes its initial in vivo entry into normal and malignant tissues by different routes.(…

This paper describes a quantitative procedure for the isolation of 67 Ga-binding granules (GBG)
from normal rat liver and Morris 5123C hepatoma homogenates by a combination of …

Both rate-zonal and isopycnic-zonal centrifugation experiments indicate that 67 Ga in rat
tumors (RFT tumor and Morris 7777, 5123C, and 7794A hepatomas) and in a mouse …

MATERIALS AND METHODS Gallium-67 was obtained as the chloride,* and con verted to
the citrate form as previously reported (3). The citrate was also obtained commercially. t …

MATERIALS AND METHODS Our HPLC system* was fitted with a 2.0-mlsample loop and a
preparative column (10 mm id X 25 cm long, Ultrasphere ODS, 5@@ zt). The column was …

MATERIALS AND METHODS Groups of fiveor more Fischer 344 rats* were used in these
studies. Animals were matched as to sex and age

Hemopoietic spleen colonies were obtained in Fischer-334 rats by injecting isologous bone-marrow
cells into heavily irradiated recipients. Total-body irradiation doses as high as 1400 …

The effect of stable scandium on the whole-body retention and tissue distribution of 46 Sc (T
1/2= 84 days) has been studied in the rat. In one group of animals high specific activity 46 …

MATERIALSAND METHODS The animals used were CD2FI and C57BI/6 micet and male
Buffalo rats4 In each experiment the animals were matched as to age and sex to avoid any …