Table 5. LOD (mg/kg) and LOQ (mg/kg) of heavy metals

	Pb	Cd	As	Cr	Cu	Ni	Zn	Ag	Hg
LOD (mg/kg)	0.0002	0.0002	0.0003	0.0001	0.0002	0.0003	0.0003	0.0003	0.0003
LOQ (mg/kg)	0.0005	0.0008	0.0008	0.0005	0.0006	0.0009	0.0010	0.0010	0.0008

LOD, limits of detection; LOQ, limits of quantitation; Pb, lead; Cd, cadmium; As, arsenic; Cr, chromium; Cu, copper; Ni, nickel; Zn, zinc; Ag, silver; Hg, mercury.