Si-qian SHI, Fang-wei YANG, Wei-rong YAO, Hang YU, Yun-fei XIE. Rapid Detection of Levamisole Residue in Pork by Surface Enhanced Raman Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2021, 41(12): 3759
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 12, 3759 (2021)
Fig. 1. Chemical structural formula of levamisole
Fig. 2. Theoretical calculation results of levamisole hydrochloride
(a): Optimize molecular structural formula of levamisole hydrochloride; (b): Comparison between theoretical Raman spectra and solid Raman spectra
(a): Optimize molecular structural formula of levamisole hydrochloride; (b): Comparison between theoretical Raman spectra and solid Raman spectra
Fig. 3. SERS peak intensity at 469 cm-1 under different detection conditions
Fig. 4. SERS spectra of levamisole hydrochloride in methanol solution with different concentrations
a —j , solid, methanol, 0.01, 0.1, 1, 10, 75, 100, 250, 500 mg·L-1 solution respectively
Fig. 5. Linear relationship between peak intensity and concentration
Fig. 6. Comparison of extraction effects of different extraction methods
a : Solid; b : Once liquid-liquid extraction blank; c : Once liquid-liquid extraction standard addition; d : Twice liquid-liquid extraction blank; e : Twice liquid-liquid extraction standard addition
Fig. 7. Comparison of extraction effects of different extraction solvents
a : Solid; b : Ethyl acetate blank; c : n-hexane blank; d : Chloroform blank; e : Ethyl acetate extraction; f : n-hexane extraction; g : Chloroform extraction
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20