SERS detection of arsenic in water: A review |
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Authors: | Jumin Hao Mei-Juan Han Songman Han Xiaoguang Meng Tsan-Liang Su Qingwu K. Wang |
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Affiliation: | 1 Center for Environmental Systems, Stevens Institute of Technology, Hoboken, NJ 07030, USA;2 Agiltron Inc., 15 Presidential Way, Woburn, MA 01801, USA;3 Department of Chemical Engineering, Renai College of Tianjin University, Tianjin 301636, China |
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Abstract: | Arsenic (As) is one of the most toxic contaminants found in the environment. Development of novel detection methods for As species in water with the potential for field use has been an urgent need in recent years. In past decades, surface-enhanced Raman scattering (SERS) has gained a reputation as one of the most sensitive spectroscopic methods for chemical and biomolecular sensing. The SERS technique has emerged as an extremely promising solution for in-situ detection of arsenic species in the field, particularly when coupled with portable/handheld Raman spectrometers. In this article, the recent advances in SERS analysis of arsenic species in water media are reviewed, and the potential of this technique for fast screening and field testing of arsenic-contaminated environmental water samples is discussed. The problems that remain in the field are also discussed and an outlook for the future is featured at the end of the article. |
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Keywords: | Arsenic SERS Detection Speciation Nanoparticles Nanofilms |
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