PAN Zhao, CUI Yao-yao, WU Xi-jun etc. 3D Fluorescence Spectra Combined with Tchebichef Moments for Rapid Identification of Doping Sesame Oil[J]. Chinese Journal of Luminescence, 2018,39(4): 568-572
PAN Zhao, CUI Yao-yao, WU Xi-jun etc. 3D Fluorescence Spectra Combined with Tchebichef Moments for Rapid Identification of Doping Sesame Oil[J]. Chinese Journal of Luminescence, 2018,39(4): 568-572 DOI: 10.3788/fgxb20183904.0568.
3D Fluorescence Spectra Combined with Tchebichef Moments for Rapid Identification of Doping Sesame Oil
The three-dimensional fluorescence spectra of the samples were measured by FS920 fluorescence spectrometer
and the characteristic information of three-dimensional spectral grayscale was extracted directly by Tchebichef moments. And then
the cluster analysis was carried out. Finally
a linear model of each component in the sample was established by the stepwise regression. Clustering analysis can identify doping sesame oil with a high recognition rate and can correctly analyze its constituent components.
R
-squared of the obtained linear model is greater than 0.99. The results show that Tchebichef moments can effectively extract the characteristic information of the spectrum and can be used to identify the doping sesame oil and obtain good qualitative and quantitative analysis results.
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references
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