Table A1.

Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) operating parameters.

	Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) operating parameters
RF power	1150 W
Nebulizer gas flow	12.5 L/min
Cool gas flow	12.5 L/min
Nebulizer gas pressure	0.2 L/min
Auxiliary gas flow	0.5 L/min
Pump speed	45 rpm
Metals	Emission waveleghts (nm)	Detection limits (mg/L)	Quantification limits (mg/L)
Al	167.0	0.005	0.015
B	249.6	0.008	0.027
Ba	455.4	0.0006	0.002
Ca	315.8	1.629	5.432
Co	228.6	0.001	0.005
Cr	267.7	0.001	0.005
Cu	324.7	0.003	0.011
Fe	238.2	0.004	0.013
K	766.4	1.764	5.883
Li	670.7	0.013	0.031
Mg	383.8	1.580	5.268
Mn	257.6	0.0008	0.003
Mo	202.0	0.0016	0.005
Na	818.3	2.221	7.404
Ni	221.6	0.0009	0.003
Sr	407.7	0.003	0.011
V	292.4	0.0014	0.004
Zn	213.8	0.0027	0.009