Figure 1.
UV-Vis spectra of (a) the H-AuNS probe prior to the reactions and the H-AuNS probe, (b) without and (c) with Hg(II) (1.0 μM) in the presence of the HCl/Au(III)/H2O2 solution. Inset: color visualization for (a), (b) and (c).
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