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Absorption study of vitamin B-12 with shadow shield whole body counter


, : Absorption study of vitamin B-12 with shadow shield whole body counter. Absorption study of vitamin B 12 with shadow shield whole body counter: 12p.

A shadow shield, scanning bed whole-body radioactivity counter, incorporating a 4" dia X 3" thick Nal (Tl) detector, has been used for clinical studies on absorption of vitamin B-12. A dose of 1 mu Ci 58Co-labelled vitamin was given to the subject and a 4-h count was taken as the 100% value. In a study of 100 normal subjects 75 of them showed less than 2% difference between the 4th day and 7th day counts; 14 showed a difference of 3 to 5%.

US$29.90


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