Journal
NANO RESEARCH
Volume 3, Issue 6, Pages 423-428Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-010-0001-0
Keywords
Recognition; isomer; chlorobiphenyl; trace levels; SERS
Categories
Funding
- National Natural Science Foundation of China [50931002]
- National Basic Research Program of China (973 program) [2007CB936601]
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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.
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