Table 1.

The detection limits of micro and macro elements analysed in experimental samples

Element	Detection limit
Macro-element (g/kg)
Ca	0.01
K	0.01
Mg	0.002
Na	0.005
P	0.01
Micro-element (mg/g)
Al	0.25
Cr	0.20
Cu	0.20
Fe	3.7
Mn	0.13
Mo	0.002
Ni	0.001
Pb	0.001
Rb	0.5
Zn	1.8