Inner filter effect mediated red-shift in synchronous and total synchronous fluorescence spectra as a tool to monitor quality of oils and petrochemicals

Fuel ◽  
2020 ◽  
Vol 267 ◽  
pp. 117174 ◽  
Author(s):  
Suraj Kumar Panigrahi ◽  
Ashok Kumar Mishra
Keyword(s):  
Fluorescence Spectra ◽  
Inner Filter Effect ◽  
Synchronous Fluorescence ◽  
Red Shift ◽  
Filter Effect ◽  
Synchronous Fluorescence Spectra

scholarly journals Characterization by fluorescence of dissolved organic matter in rural drinking water storage tanks in Morocco

2018 ◽  
Vol 16 (2) ◽  
pp. 321-328
Author(s):  
Faissal Aziz ◽  
Naaila Ouazzani ◽  
Laila Mandi ◽  
Aziz Assaad ◽  
Steve Pontvianne ◽  
...  
Keyword(s):  
Drinking Water ◽  
Fluorescence Spectroscopy ◽  
Rural Areas ◽  
Water Storage ◽  
Oxygen Demand ◽  
Synchronous Fluorescence ◽  
Storage Tanks ◽  
Reservoir Water ◽  
Synchronous Fluorescence Spectra

Abstract Water storage tanks, fed directly from the river through opened channels, are particular systems used for water supply in rural areas in Morocco. The stored water is used as drinking water by the surrounding population without any treatment. UV-visible spectroscopy and fluorescence spectroscopy (excitation-emission matrices and synchronous fluorescence) have been tested as rapid methods to assess the quality of the water stored in the reservoirs as well as along the river feeding them. Synchronous fluorescence spectra (SFS50), collected with a difference of 50 nm between excitation and emission wavelengths, revealed a high tryptophan-like fluorescence, indicative of a pollution induced by untreated domestic and/or farm wastewater. The best correlations were obtained between the total SFS50 fluorescence and dissolved organic carbon (DOC) and biological oxygen demand, showing that the contribution of humic-like fluorescent substances cannot be neglected to rapidly assess reservoir water quality in terms of DOC by fluorescence spectroscopy.

Inner Filter Effect on Fluorescence Dyes Spectra in Methanol Solution

2016 ◽  
Vol 675-676 ◽  
pp. 704-707 ◽  
Author(s):  
Saksit Sukprasong ◽  
Yongyut Manjit ◽  
Apichart Limpichaipanit ◽  
Athipong Ngamjarurojana
Keyword(s):  
Fluorescence Intensity ◽  
Fluorescence Spectra ◽  
Inner Filter Effect ◽  
Fluorescent Dye ◽  
Concentration Effect ◽  
Wavelength Shift ◽  
Filter Effect ◽  
High Concentrations ◽  
Fluorescence Dyes ◽  
Dye Solutions

This research was conducted to study the inner filter effect on the fluorescence spectra of fluorescence dyes. The concentration effect on all of fluorescent dye solutions showed the same trend in terms of changes in fluorescence intensity spectra. At low concentrations, the fluorescence intensity increased when the concentration of fluorescent dye solution increased. However, at high concentrations, the fluorescence intensity decreased when the concentration of fluorescent dye solution increased. Interestingly, the result of fluorescence spectra in dye solutions showed that the fluorescence intensity maxima in all dye solutions were shifted to a higher wavelength (red-shift) when the concentration of fluorescent dye solution increased. The results of concentration effect on fluorescence intensity and wavelength-shift in dyes solution can be explained by inner filter effect on fluorescent dye solutions.

Accounting for Secondary Inner Filter Effect in Fluorescence Spectra from Solid Samples

2018 ◽  
Vol 114 (11) ◽  
pp. 2353 ◽  
Author(s):  
Tuhin Khan ◽  
Kalyani Bhagabani ◽  
Preeti Kumari ◽  
Anindya Datta
Keyword(s):  
Fluorescence Spectra ◽  
Inner Filter Effect ◽  
Solid Samples ◽  
Filter Effect

The synchronous fluorescence spectra character of hypocrellin B with type I collagen under irradiation

2014 ◽  
Author(s):  
Jucheng Zhang ◽  
Heping Yan ◽  
Mengting Yang ◽  
Yongzhen Feng ◽  
Yun Huang ◽  
...  
Keyword(s):  
Fluorescence Spectra ◽  
Type I Collagen ◽  
Synchronous Fluorescence ◽  
Type I ◽  
Synchronous Fluorescence Spectra ◽  
Hypocrellin B

scholarly journals Synchronous fluorescence spectra of water contaminated by dispersed crude oil

2020 ◽  
Vol 50 (1) ◽  
Author(s):  
Emilia Baszanowska ◽  
Zbigniew Otremba
Keyword(s):  
Crude Oil ◽  
Fluorescence Spectra ◽  
Oil Pollution ◽  
Synchronous Fluorescence ◽  
Mining Equipment ◽  
Oil Emulsion ◽  
Synchronous Fluorescence Spectra ◽  
Emulsion Concentration ◽  
Petroleum Extraction

The development of petroleum extraction and transport technology does not ensure complete isolation of these substances from the natural environment. This problem is exacerbated by the location of mining equipment on the sea shelf and the fact that numerous submarine pipelines, tankers and handling terminals can also emit oil pollution. Therefore, the possibility of detecting oil dispersed in the water is particularly important. This paper reports the efforts to identify methods of characterization of the water containing the crude oil emulsion in a very low concentration (a few to several tens of ppm). Due to this, the effect of emulsion concentration on the possibility of its objective characterization using synchronous fluorescence spectra was studied. The similarity of spectra at various oil concentrations was analysed. It has been shown that the stabilization of the shape of synchronous fluorescence spectra occurs at relatively low oil concentrations.

Sign in / Sign up

Export Citation Format

Share Document