title: SERS detection of arsenic in water: A review.
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.
authors.affiliation: Center for Environmental Systems, Stevens Institute of Technology, Hoboken, NJ 07030, USA; Agiltron Inc., 15 Presidential Way, Woburn, MA 01801, USA. Electronic address: jmhao0753@gmail.com.
authors.forename: Jumin
authors.initials: J
authors.lastname: Hao
authors.affiliation: Center for Environmental Systems, Stevens Institute of Technology, Hoboken, NJ 07030, USA.
authors.forename: Mei-Juan
authors.initials: MJ
authors.lastname: Han
authors.affiliation: Department of Chemical Engineering, Renai College of Tianjin University, Tianjin 301636, China.
authors.forename: Songman
authors.initials: S
authors.lastname: Han
authors.affiliation: Center for Environmental Systems, Stevens Institute of Technology, Hoboken, NJ 07030, USA.
authors.forename: Xiaoguang
authors.initials: X
authors.lastname: Meng
authors.affiliation: Center for Environmental Systems, Stevens Institute of Technology, Hoboken, NJ 07030, USA.
authors.forename: Tsan-Liang
authors.initials: TL
authors.lastname: Su
authors.affiliation: Agiltron Inc., 15 Presidential Way, Woburn, MA 01801, USA.
authors.forename: Qingwu K
authors.initials: QK
authors.lastname: Wang
mesh_terms: D001151:Arsenic / Q000032:analysis*; D004784:Environmental Monitoring; D005618:Fresh Water / Q000032:analysis*; D013059:Spectrum Analysis, Raman; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D014874:Water Pollutants, Chemical; D001151:Arsenic
keywords: Arsenic; Detection; Nanofilms; Nanoparticles; SERS; Speciation