Abstract
The methods of Zak, Benotti and Rodgers were improved to determine minute amounts of iodine in serum, thyroid, tissue, diet, urine and stool.
Thermal decomposition of samples is accomplished by the use of a chloric acid containing a one milligram of sodium chromate at 190-195°C.
The cerium (IV) -arsenic (III) catalytic system is used to measure the iodine concentration.
The recovery as shown by additions of iodine is in 95-106% and the diverse ions in the samples did not interfere the reaction.
