Journal
CHINESE OPTICS LETTERS
Volume 7, Issue 11, Pages 1055-1057Publisher
CHINESE OPTICS LETTERS MANUSCRIPT OFFICE
DOI: 10.3788/COL20090711.1055
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Funding
- National Natural Science Fundation of China [60778046]
- Project of Fujian Province [200810015, 2008J0016]
- Project of Fujian Key Lab of Semiconductors and Applications, Xiamen University
- Project of Fujian Development and Reform Commission [2005-847]
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We report the surface-enhanced Raman (SERS) spectra of morphine in silver colloid, and study the silver colloid enhanced effects on the Raman scattering of morphine. The Raman bands of morphine are assigned to certain molecule vibrations. The broad band in the long-wavelength region of the electronic absorption spectra of the sol with added adsorbent at certain concentrations has been explained in terms of the aggregation of the colloidal silver particles. The potential applications of SERS in quantitative measurement of the morphine samples are demonstrated. By using a proper Raman band of morphine, the detection limit of morphine in silver sol is found to be 1.5 ng/ml. The result suggests that it is of great significance to use SERS in illicit drug morphine inspection.
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