Table 1.

ICP-MS analytical parameters.

Element	Mass	Slope	Intercept	r2	LOD ng/kg	LOQ ng/kg	Linear Range
La	139	818	5826	0.992	0.023	0.077	5–1000
Ce	140	2875	7503	0.996	0.009	0.030	5–1000
Pr	141	1745	37568	0.996	0.060	0.200	5–1000
Nd	146	84	1713	0.995	0.129	0.430	5–500
Sm	147	70	1348	0.996	0.160	0.533	5–500
Eu	153	209	1919	0.993	0.027	0.090	5–500
Gd	157	204	3854	0.997	0.096	0.320	5–1000
Tb	159	708	12315	0.992	0.077	0.257	5–1000
Dy	163	72.6	1185	0.991	0.120	0.400	5–1000
Ho	165	226	1021	0.994	0.016	0.053	5–1000
Er	166	115	462	0.991	0.040	0.133	5–500
Tm	169	214	845	0.996	0.025	0.083	5–500
Yb	172	70.6	213	0.993	0.031	0.103	5–500

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