Table 1.

Validation Parameters for the investigated Metals using AAS.

Metals	Current (mA)	Wavelength (nm)	Calibration curve (R2)	%R	LOD	LOQ
Pb	10	282.9	0.9897	94.66 ± 3.10	0.013	0.04
Cu	6	325.1	0.9991	89.56 ± 1.09	0.03	0.09
Hg	10	253.7	0.9986	96.35 ± 2.02	0.005	0.015
Zn	8	214.2	0.9924	93.39 ± 1.63	0.005	0.015
Cd	8	228.6	0.9935	92.33 ± 3.10	0.01	0.03

LOD = limit of detection, LOQ = limit of quantification.