Spectrophotometric Determination of Iron(II) and Cobalt(II) by Direct, Derivative, and Simultaneous Methods Using 2-Hydroxy-1-Naphthaldehyde-p-Hydroxybenzoichydrazone : Table 6

Table 6: Determination of iron in food and biological samples.


Samples	Amount of iron(μg mL⁻¹) ± SD ()
	Found			Recovered
	present	AAS	Added	present	AAS	% recovery

Wheat			5			97.6
Rice			5			102
Tomato			5			104
Orange			5			96
Banana			5			98.3

Prostate gland			6.5			103
Benign (enlarged prostate gland			6.5			95.12