[Analysis of the characters of organic matter in water using spectral fluorescence signature and fitting Gaussian].
A sort of analytical method of fast diagnosis of organic matter in water is discussed. The total luminescence spectra (TLS) of water samples in combination with laser induced fluorescence (LIF) measurements using 532 nm wavelength excitation source were measured in the laboratory. The spectra of dissolved organic matter (DOM) and chlorophyll a (Chl a) were pointed out and obtained with spectral fluorescence signature (SFS) technique. The spectrum of water Raman scattering and fluorescence of DOM and Chl a were separated from TLS with fiting Gaussian of the least squares method, and a high correlation coefficient excelling 0.996 4 was obtained. The results indicated the possibilities of water quality monitoring in real time and on line based upon SFS technique and fitting Gaussian of the least squares method.
Zhao
Nan-Jing
NJ
Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China.
Liu
Wen-Qing
WQ
Cui
Zhi-Cheng
ZC
Zhang
Yu-Jun
YJ
Liu
Jian-Guo
JG
Li
Hong-Bin
HB
Yang
Li-Shu
LS
D004784:Environmental Monitoring / Q000379:methods; D009930:Organic Chemicals / Q000032:analysis*; D013050:Spectrometry, Fluorescence / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000032:analysis*
D009930:Organic Chemicals; D014874:Water Pollutants, Chemical