Three-Dimensional Fluorescence Spectra Analysis of Oil Contaminants Based on Algorithm Combination Methodology

2019 ◽  
Vol 56 (3) ◽  
pp. 033002
Author(s):  
陈至坤 Chen Zhikun ◽  
黄微 Huang Wei ◽  
程朋飞 Cheng Pengfei ◽  
沈小伟 Shen Xiaowei ◽  
王福斌 Wang Fubin
Keyword(s):  
Fluorescence Spectra ◽  
Three Dimensional ◽  
Spectra Analysis

Enhanced Performance of Ultrafiltration Membrane with Powdered Zeolite Addition for Secondary Effluent Treatment

2013 ◽  
Vol 838-841 ◽  
pp. 2712-2716
Author(s):  
Yong Tu ◽  
Yong Gang Bai ◽  
Yong Chen ◽  
Wei Jing Liu ◽  
Jun Xu ◽  
...  
Keyword(s):  
Membrane Fouling ◽  
Fluorescence Spectra ◽  
Municipal Wastewater ◽  
Three Dimensional ◽  
Treatment Plant ◽  
Ultrafiltration Membrane ◽  
Effluent Treatment ◽  
Secondary Effluent ◽  
Municipal Wastewater Treatment ◽  
Sem Images

The research on ultrafiltration membrane assisted by powdered zeolite for the treatment of secondary effluent from a municipal wastewater treatment plant was studied. The results show that membrane fouling rate is reduced by pre-coating the ultrafiltration membrane with powdered zeolite, and the treatment performance of secondary effluent is enhanced. UV-vis, three-dimensional excitation emission matrix (3D-EEM) fluorescence spectra and scanning electron microscopy (SEM) images for ultrafiltration were also discussed.

Membranes affinity of 10-hydroxycamptothecin and SN-38, anticancer agents, determined by fluorescence spectra analysis

2006 ◽  
Author(s):  
Michał Cyrankiewicz ◽  
Blanka Ziomkowska ◽  
Stefan Kruszewski ◽  
Ryszard Siuda
Keyword(s):  
Anticancer Agents ◽  
Fluorescence Spectra ◽  
Spectra Analysis

Component recognition with three-dimensional fluorescence spectra based on non-negative matrix factorization

2011 ◽  
Vol 25 (11) ◽  
pp. 586-591 ◽  
Author(s):  
Shaohui Yu ◽  
Yujun Zhang ◽  
Wenqing Liu ◽  
Nanjing Zhao ◽  
Xue Xiao ◽  
...  
Keyword(s):  
Matrix Factorization ◽  
Fluorescence Spectra ◽  
Three Dimensional ◽  
Component Recognition ◽  
Non Negative Matrix Factorization

WT-SVD Feature of Three Dimensional Fluorescence Spectra of Mineral Oil

2015 ◽  
Vol 52 (6) ◽  
pp. 063001
Author(s):  
田广军 Tian Guangjun ◽  
杨子臣 Yang Zichen
Keyword(s):  
Fluorescence Spectra ◽  
Three Dimensional ◽  
Mineral Oil

Fabrication and Characterization of LaOBr:Eu3+ Luminescent Nanofibers

2015 ◽  
Vol 1118 ◽  
pp. 92-96 ◽  
Author(s):  
Wen Sheng Yu ◽  
Chun Song Zhu ◽  
Qian Li Ma ◽  
Wen Wen Ma ◽  
Jin Xian Wang ◽  
...  
Keyword(s):  
Cetyltrimethylammonium Bromide ◽  
Fluorescence Spectra ◽  
Energy Levels ◽  
Energy Dispersion Spectroscopy ◽  
Spectra Analysis ◽  
Red Emission ◽  
X Ray ◽  
Double Crucible ◽  
Fabrication And Characterization

LaOBr:Eu3+ nanofibers have been successfully fabricated by electrospinning combined with a double-crucible bromination technique using cetyltrimethylammonium bromide (CTAB) powers as bromine source. The products were characterized in detail by X-ray diffractometry (XRD), scanning electron microscopy (SEM), energy dispersion spectroscopy (EDS) and fluorescence spectroscopy. The results indicate that LaOBr:Eu3+ luminescent nanofibers are tetragonal in structure with space group P4/nmm. The diameter of LaOBr:Eu3+ luminescent nanofibers is ca. 150 nm. Fluorescence spectra analysis shows that under the excitation of 302-nm ultraviolet light, the LaOBr:Eu3+ nanofibers exhibit red emission centering at 620 nm, which is attributed to the 5D0→7F2 energy levels transitions of Eu3+ ions.

Study on Three-Dimensional Fluorescence Spectra of Oil Concentration in Water

2011 ◽  
Vol 322 ◽  
pp. 144-147
Author(s):  
Yu Tian Wang ◽  
Li Li Yang ◽  
Xin Qiong Lu
Keyword(s):  
Quantitative Analysis ◽  
Fluorescence Intensity ◽  
Fluorescence Spectra ◽  
Three Dimensional ◽  
Measurement Model ◽  
Excitation Wavelength ◽  
Experimental Basis ◽  
Oil In Water ◽  
Oil Concentration ◽  
Fluorescence Spectrometer

According to the Lambert-Beer laws, the fluorescence spectra of oil in water were investigated by measuring excitation-emission matrixes with FS920 fluorescence spectrometer. On the basis of the three-dimensional fluorescence spectra of oil in water, the excitation wavelength of 290nm and emission wavelength of 324nm were chosen for the quantitative analysis of oil in water. The results show that the concentration of oil in water is linearly proportional to the fluorescence intensity in the range of 1ppm-100ppm, and the measurement model of concentration is obtained with the linear correlation coefficient of 0.9993. The artificial samples has also been tested and the results are satisfactory. The recovery is in the range of 92%-106%. The research provides experimental basis for the quantitative analysis of multi-component oil in water.

scholarly journals On the purported “backbone fluorescence” in protein three-dimensional fluorescence spectra

RSC Advances ◽  
2016 ◽  
Vol 6 (114) ◽  
pp. 112870-112876 ◽  
Author(s):  
Annalisa Bortolotti ◽  
Yin How Wong ◽  
Stine S. Korsholm ◽  
Noor Hafizan B. Bahring ◽  
Sara Bobone ◽  
...  
Keyword(s):  
Fluorescence Spectra ◽  
Three Dimensional ◽  
Aromatic Residues

A peak in 3D-fluorescence spectra of proteins, often assigned to backbone emission, is shown to be due to aromatic residues.

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