Xiao-bin WANG, Xi ZHANG, Chen-zhi GUAN, Hua-xiu HONG, Shuang-gen HUANG, Chun-jiang ZHAO. Quantitative Detection of Ascorbic Acid Additive in Flour Based on Raman Imaging Technology[J]. Spectroscopy and Spectral Analysis, 2021, 41(12): 3765
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 12, 3765 (2021)
Fig. 1. Average Raman spectra of (a) ascorbic acid and (b) flour
Fig. 2. Average Raman spectra of flour-ascorbic acid mixed samples
Fig. 3. Regression coefficients of PLS model
Fig. 4. Classification image of mixed samples
Fig. 5. Linear relationship model between the concentration of ascorbic acid and its detection pixels
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Table 1. Detection results of ascorbic acid in mixed sample images
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