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. 2020 Nov 11;6(11):e05484. doi: 10.1016/j.heliyon.2020.e05484

Table 3.

ICP-MS precision and accuracy of the method.

Elements LOQ (μg kg−1) reference material measured value (mg kg−1) reference material certified value (mg kg−1)
Fe 0.64 311 ± 17 330 ± 20
Zn 23.5 30 ± 3 32 ± 2
Ca 12.5 6088 ± 338 6700 ± 400