Table 1.

Results of the ICP‐OES method validation

Element/analytical linesa	Wavelength (nm)	Limits of detection (mg/kg)	Limits of quantification (mg/kg)	Recovery (%)	Calibration range (mg/kg)
Li I	670.784	0.300	0.900	99.2	5–50
Na I	589.592	0.087 (ax); 0.365 (rad)	0.261 (ax); 1.095 (rad)	92.8	5–100
K I	766.490	0.211 (ax); 0.397 (rad)	0.633 (ax); 1.191 (rad)	93.4	5–100
Ba II	233.527	0.009	0.028	98.8	5–100
Ca II	317.933	0.089 (ax); 0.21 (rad)	0.267 (ax); 0.630 (rad)	97.0	5–100
Mg I	285.213	0.032 (ax); 0.044 (rad)	0.096 (ax); 0.132 (rad)	98.7	5–100
Be II	313.107	0.005	0.015	91.3	0.5–250
Sr II	407.771	0.005	0.015	95.82	2.5–50
Cr II	267.716	0.013	0.039	100.2	0.5–250
Mo II	202.031	0.058	0.174	102.2	2.5–250
Zn I	213.857	0.035	0.105	98.9	2.5–250
Co II	228.616	0.010	0.030	96.5	0.5–250
Ni II	221.648	0.021	0.063	103.7	0.5–250
Mn II	257.610	0.003	0.009	99.2	0.5–250
Cu I	324.752	0.027	0.081	98.7	0.5–250
Fe II	238.204	0.010	0.030	99.0	0.5–250
Ag I	328.068	0.018	0.054	101.5	2.5–250
V II	309.310	0.067	0.201	93.6	2.5–250
Cd I	228.802	0.005	0.015	97.5	0.5–50
Pb II	220.353	0.065	0.195	103.2	2.5–250
Se I	196.026	0.189	0.567	108.5	5–100
Sn II	189.927	0.257	0.771	105.7	2.5–250
Al I	396.153	0.069	0.207	101.9	0.5–250
B I	249.677	0.223	0.669	101.9	5–100
Bi I	223.061	0.005	0.015	99.5	5–50
Tl II	190.801	0.845	2.535	114.29	5–500
Ga I	417.206	0.005	0.015	101.95	5–50
La II	398.852	0.025	0.075	103.5	5–50
Te I	214.281	0.290	0.870	98.00	5–50
Sb I	206.836	0.381	1.143	97.2	2.5–250
Si I	251.611	0.180	0.540	102.0	5–500
As I	188.979	0.172	0.516	102.8	2.5–250

^aI‐atomic lines; II‐ionic.