From: Highly sensitive and selective visual detection of Cr(VI) ions based on etching of silver-coated gold nanorods
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
5.21 ± 0.2
96.0
5.09