Colorimetric Detection Based on Localized Surface Plasmon Resonance Optical Characteristics for Sensing of Mercury Using Green-Synthesized Silver Nanoparticles

<div>(a) The change in colour of the silver nitrate solution (transparent) after the reduction of silver ions and the formation of silver nanoparticles (dark brown) formed by onion extract; (b) comparison between the UV-visible absorption spectra of the green-prepared AgNPs and AgNO<sub>3</sub> solution.</div>

Journal of Analytical Methods in Chemistry

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Figure 1: Colorimetric Detection Based on Localized Surface Plasmon Resonance Optical Characteristics for Sensing of Mercury Using Green-Synthesized Silver Nanoparticles 

Figure 1 | Colorimetric Detection Based on Localized Surface Plasmon Resonance Optical Characteristics for Sensing of Mercury Using Green-Synthesized Silver Nanoparticles 