Discrimination of three dimensional fluorescence spectra based on wavelet analysis and independent component analysis.
Fluorescence spectroscopy is a rapid and non-destructive method for monitoring water quality. In this work, wavelet analysis, together with independent component analysis (ICA), was applied for component recognition of seriously overlapped, multi-component, three dimensional fluorescence spectra. Wavelet analysis extracts the features of the spectra and amplifies differences among phenolic homologs. ICA analysis in blind signal separation was used to separate single component before multiple linear regression (MLR). The proposed method increases the correct classification rate and enriches the spectra library. As such, it is a useful alternative to traditional techniques in component recognition.
Key Laboratory of Environmental Optics & Technology, Chinese Academy of Sciences, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China.
Xiaoya
X
Yu
Key Laboratory of Environmental Optics & Technology, Chinese Academy of Sciences, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China. Electronic address: yjzhang@aiofm.ac.cn.
Yujun
Y
Zhang
Key Laboratory of Environmental Optics & Technology, Chinese Academy of Sciences, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China.
Gaofang
G
Yin
Key Laboratory of Environmental Optics & Technology, Chinese Academy of Sciences, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China.
Nanjing
N
Zhao
Key Laboratory of Environmental Optics & Technology, Chinese Academy of Sciences, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China.
Xue
X
Xiao
Key Laboratory of Environmental Optics & Technology, Chinese Academy of Sciences, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China.
Changhua
C
Lu
Key Laboratory of Environmental Optics & Technology, Chinese Academy of Sciences, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China.
Yanwei
Y
Gao
Key Laboratory of Environmental Optics & Technology, Chinese Academy of Sciences, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China.
Wei
W
Zhang
D010636:Phenols / Q000737:chemistry; D025341:Principal Component Analysis; D013050:Spectrometry, Fluorescence; D058067:Wavelet Analysis
D010636:Phenols
Blind signal separation; Independent component analysis; Three dimensional fluorescence spectra; Wavelet analysis