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Table 8 Measurement uncertainty of elements determination in plant aqueous extracts and plant dry mass

From: Validation and measurement uncertainty evaluation of the ICP-OES method for the multi-elemental determination of essential and nonessential elements from medicinal plants and their aqueous extracts

Element Measurement uncertainty, % (k = 2)
Plant aqueous extracts Plant dry mass
Cd 5.8 8.7
Cr 7.5 8.8
Cu 5.7 8.9
Fe 8.2 8.3
Mn 6.2 6.4
Ni 6.6 8.8
Zn 5.9 6.3
As 7.7 9.8