Production and purification parameters for ¹²⁴I.

Radioisotope	124I
Target material	Natural and enriched tellurium, enriched tellurium oxide
Product purity	87–>99%
Major impurities	123I, 125I, 126I, 130I
Primary separation method	Thermochromatographic dry distillation
	(670–820 °C in air, Ar, He or O2; weak buffer for precipitated dissolution; NaOH trap)
Product separation yield	80–95%
Target recovery yield	60–90%