Qian ZHANG, Xiang-hui DONG, Wei-rong YAO, Hang YU, Yun-fei XIE. Surface-Enhanced Raman Spectroscopy for Rapid Detection of Flunixin Meglumine Residues in Pork[J]. Spectroscopy and Spectral Analysis, 2022, 42(10): 3155
- Spectroscopy and Spectral Analysis
- Vol. 42, Issue 10, 3155 (2022)
Fig. 1. The structure of FM
Fig. 2. Optimize molecular structural formula of FM (a), the blue, red, grey, white, green ball are N, O, C, H, F atom respectively; Comparison between theoretical Raman spectra and solid Raman spectra (b)
Fig. 3. Effect of gold colloid volume ratio (a), sample pH (b) and coagulant (c) on SERS signal of FM
Fig. 4. SERS spectra of flunixin meglumine inmethanol solution with different concentrations
Fig. 5. Impact of extraction environmental (a) and extractant (b)
Fig. 6. The actual sample peaks (a), Linear relationship between FM concentration and SERS intensity at 731 cm-1 (b)
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Table 1. Linear relationship for each wave number
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