Investigation of Some Metals in Leaves and Leaf Extracts of Lippia javanica: Its Daily Intake

Table 2

Mean concentrations (mean ± SD, mg/kg, DW, ), element recoveries (%), RSD (%), and LOD for metals in leaf samples of L. javanica  .

Element	Aliquot	Spiked sample	spike	% recovery	% RSD	LOD (mg/kg)
Cu (T)	10.28	11.50 ± 0.80	2.10	92.89 ± 1.12	6.96	0.230
Cu (I)	3.36	4.98 ± 0.35	2.10	91.21 ± 1.46	7.03	0.230
Fe (T)	104.44	126.26 ± 7.23	20.80	102.41 ± 2.20	5.73	1.250
Mn (T)	86.25	96.51 ± 6.34	17.20	94.26 ± 1.80	6.57	1.540
Mn (B)	39.71	52.77 ± 4.27	17.20	92.72 ± 1.39	8.09	0.120
Pb (B)	0.00	2.34 ± 0.11	2.52	92.73 ± 0.23	4.70	0.120
Cr (I)	0.63	1.57 ± 0.06	1.00	96.32 ± 0.62	3.83	0.188

T: total metal concentration, B: leaf brew, and I: leaf infusion.