Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4453877 | Journal of Environmental Sciences | 2016 | 10 Pages |
Concerns over exposure to mercury have motivated the exploration of cost-effective, rapid, and reliable method for monitoring Hg2 + in the environment. Recently, surface-enhanced Raman scattering (SERS) has become a promising alternative method for Hg2 + analysis. SERS is a spectroscopic technique which combines modern laser spectroscopy with the optical properties of nano-sized noble metal structures, resulting in substantially increased Raman signals. When Hg2 + is in a close contact with metallic nanostructures, the SERS effect provides unique structural information together with ultrasensitive detection limits. This review introduces the principles and contemporary approaches of SERS-based Hg2 + detection. In addition, the perspective and challenges are briefly discussed.
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