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Table 5 Results of analysis of IAEA-359 cabbage CRM (IAEA)

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 Certified content, μg g−1 Found contenta, μg g−1
Cd 0.115 to 0.125 0.116 ± 0.014
Cr 1.24 to 1.36 1.25 ± 0.088
Cu 5.49 to 5.85 5.44 ± 0.41
Fe 144.1 to 151.9 147 ± 4.53
Mn 31.3 to 32.5 32.4 ± 2.15
Ni 1.00 to 1.10 1.03 ± 0.094
Zn 37.9 to 39.3 37.8 ± 1.89
As 0.096 to 0.104 0.100 ± 0.012
Mg 2,110 to 2,210 2,114 ± 23.6
  1. aValues are expressed in microgram per gram dry weight and reported as average ± s; n = 5; 95% confidence level.