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. 2020 Jan 15;7:911. doi: 10.3389/fchem.2019.00911

Table 1.

Results for the detection of Fe3+ in tap water.

Samples Added Fe3+
(μM) 		Found Fe3+
(μM) 		Recovery (%) RSD
(n = 3, %)
1 20 19.68
21.47
18.96		 98.4
107
94.8		 1.29
2 40 41.58
35.83
42.66		 104
89.6
106		 3.67
3 60 54.33
56.12
58.81		 90.6
93.5
98.1		 2.25