Article Title

Rapid recognition of isomers of monochlorobiphenyls at trace levels by surface-enhanced Raman scattering using Ag nanorods as a substrate

Authors

Qin Zhou, Advanced Materials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
Ye Yang, Advanced Materials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
Jie Ni, Advanced Materials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
Zhengcao Li, Advanced Materials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
Zhengjun Zhang, Advanced Materials Laboratory, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

Keywords

Recognition, isomer, chlorobiphenyl, trace levels, SERS

Abstract

Isomers and homologues of organic pollutants are hard to distinguish—especially in trace amounts—due to the similarities in their physical and chemical properties. We report here that by identifying the Raman characteristics of isomers of monochlorobiphenyls, these compounds can be recognized, even at trace levels, by using the surface-enhance Raman scattering method with silver nanorods as a substrate. When dissolved in acetone, 2-, 3-, and 4-chlorobiphenyls were detected at a concentration of 10–8 mol/L, at which their characteristic Raman peaks were visible. This study may provide a fast, simple, and sensitive method for the detection and recognition of organic pollutants such as polychlorinated biphenyls.

Graphical Abstract

DOI

https://doi.org/10.1007/s12274-010-0001-0

Publisher

Tsinghua University Press

Recommended Citation

Qin Zhou,Ye Yang,Jie Ni,Zhengcao Li,Zhengjun Zhang, Rapid recognition of isomers of monochlorobiphenyls at trace levels by surface-enhanced Raman scattering using Ag nanorods as a substrate. NanoRes.2010, 3: 423–428