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. 2019 Oct 23;6:34. doi: 10.1186/s40580-019-0206-1

Table 1.

Results for the determination of Cr(VI) ions in different environmental samples

Samples Added (μg L−1) Found (μg L−1)a Recovery (%) Found by ICP-MS
Tap water 5 5.34 ± 0.1 93.6 5.13
Pond water 5 5.21 ± 0.2 96.0 5.09

aMean standard deviation %