| Autor: |
Leonard, Jennifer, Haddad, Abed, Green, Omar, Birke, Ronald L., Kubic, Thomas, Kocak, Ali, Lombardi, John R. |
| Předmět: |
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| Zdroj: |
Journal of Raman Spectroscopy; Oct2017, Vol. 48 Issue 10, p1323-1329, 7p |
| Abstrakt: |
We examine the normal Raman and the surface-enhanced Raman spectra of fentanyl and carfentanil. As an aid in the assignment of the spectral lines, we present a density functional theory calculation. Although Raman spectroscopy is a valuable analytic tool for the detection and identification of molecular species, it is a weak effect and requires specialized equipment for detection of trace samples. We therefore turn to surface-enhanced Raman spectroscopy, which utilizes the large enhancement of the Raman signal endowed by proximity to silver or gold nanoparticles. The enhancement factor (EF) obtained in this experiment is ≥1.6 × 105. This points the way towards future development of a simple and sensitive technique for the detection of analytes in trace quantities, particularly for wider application in forensic science. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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