Medical isotope

123

I can be produced with nuclear reaction of

123

Sb (

α

2n)

123

I. A method is for determining trace elements in target material Sb plate is described. The Sb plate were dissolved in the mixture of 6N HC1 and concentrated HNO

3

then evaporated to fume and transformed into bromide by dissolving the residue in 8N HBr. Sb was extracted by shaking the mixture with 1

N

D

2

EHPA/n-Heptane and rejecting the organic layer

A1

Cd

Co

Pb and Te in aqueous phase were determined by ICP emission spectrometry with a sensitivities of from 6×10

-6

g to 1.25×10

-7

g

chemical yields of 82.0% to 95.0% and relative standard deviation of 8.2% to 19.5%.