Determination of the Iodine Content of Some Commonly Consumed Foods in Zaria Metropolis, Nigeria, Using PCNAA and Sandell-Kolthoff Reaction

Table 1

Comparison of SRM certified values and this work.

SRMs	PCNAA (mg/Kg)	% SD	𝑡-test	S-K spectroscopy (mg/Kg)	% SD	𝑡-test	SRM certified value (mg/Kg)
NIST 1548a	0.759 ± 0.06	0	1	0.751 ± 0.05	1.12	0.95	0.759 ± 0.103
NIST 1515	0.30 ± 0.07	0		0.286 ± 0.01	6.99		0.3