Research Article
Detection of Alternative Drugs for Illegal Injection Based on Surface-Enhanced Raman Spectroscopy
Table 1
Assignment of the Raman characteristic peaks of promethazine.
| Solid Raman wave number (cm−1) | SERS wave number (cm−1) | Calculated wave number (cm−1) | Assignment |
| 1034 | 1034 | 1030 | Double benzene ring internal symmetric bending | 1107 | 1112 | 1085 | C-S-C stretching + benzene ring bending | | 1254 | 1236 | C-N-C stretching | 1292 | | 1306 | Benzene ring internal symmetric stretching + nitrogen heterocyclic ring symmetric stretching | 1571 | 1571 | 1572 | Benzene ring internal symmetric stretching |
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