Rapid Colorimetric Detection of Hg (II) Based on Hg (II)-Induced Suppressed Enzyme-Like Reduction of 4-Nitrophenol by Au@ZnO/Fe3O4 in a Cosmetic Skin Product

<div>Selectivity of Au@ZnO/Fe3O4 towards Hg2+. (a) Absorption spectra of 4-NP in the presence of Hg2+ and possible competing species. (b) Bar graph comparing absorbances of possible interferents to Hg2+.</div>

Nanomaterials and Nanotechnology

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Figure 9

Figure 9: Rapid Colorimetric Detection of Hg (II) Based on Hg (II)-Induced Suppressed Enzyme-Like Reduction of 4-Nitrophenol by Au@ZnO/Fe3O4 in a Cosmetic Skin Product

Figure 9 | Rapid Colorimetric Detection of Hg (II) Based on Hg (II)-Induced Suppressed Enzyme-Like Reduction of 4-Nitrophenol by Au@ZnO/Fe3O4 in a Cosmetic Skin Product 