Heavy Metal Content and Health Risk Assessment of Some Selected Medicinal Plants from Obuasi, a Mining Town in Ghana

Table 2

Recovery test results.

Metal	Amount added (mg)	Amount found (mg)	Amount recovered (mg)	% recovery
As	0.5	0.9	0.8	99.8 ± 1.1
Cd	0.5	1.2	0.7	99.0 ± 1.2
Cr	0.5	3.5	0.77	101.8 ± 4.3
Hg	0.05	0.1	0.075	100.0 ± 1.3
Pb	5	10.8	7.4375	99.4 ± 1.2
Ni	0.5	5.2	1.0325	103.3 ± 4.8
Mn	2.5	30.8	3.825	100.5 ± 5.3