Rapid Colorimetric Detection of Hg (II) Based on Hg (II)-Induced Suppressed Enzyme-Like Reduction of 4-Nitrophenol by Au@ZnO/Fe<sub>3</sub>O<sub>4</sub> in a Cosmetic Skin Product

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Spiking concentration (nM)</td><td class="align_center">Detected concentration (nM)</td><td class="align_center">Recovery (%)</td><td class="align_center">RSD (%)</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">4.00</td><td class="align_center">4.01</td><td class="align_center">100.29</td><td class="align_center">13.83</td></tr><tr><td class="align_left">6.00</td><td class="align_center">5.93</td><td class="align_center">98.78</td><td class="align_center">7.96</td></tr><tr><td class="align_left">8.00</td><td class="align_center">7.72</td><td class="align_center">96.49</td><td class="align_center">4.26</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The detection of Hg<sup>2+</sup> in a cosmetic product.</div>

Nanomaterials and Nanotechnology

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Table 2

Table 2: Rapid Colorimetric Detection of Hg (II) Based on Hg (II)-Induced Suppressed Enzyme-Like Reduction of 4-Nitrophenol by Au@ZnO/Fe<sub>3</sub>O<sub>4</sub> in a Cosmetic Skin Product 

Table 2 | 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 