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Potential use of the characteristic Raman lines of toluene (C7H8 ) as a reference on the spectral analysis of fuel blends

  • We report the use of the Raman spectral information of the chemical compound toluene C7H8 as a reference on the analysis of laboratory-prepared and commercially acquired gasoline-ethanol blends. The rate behavior of the characteristic Raman lines of toluene and gasoline has enabled the approximated quantification of this additive in commercial gasoline-ethanol mixtures. This rate behavior has beenWe report the use of the Raman spectral information of the chemical compound toluene C7H8 as a reference on the analysis of laboratory-prepared and commercially acquired gasoline-ethanol blends. The rate behavior of the characteristic Raman lines of toluene and gasoline has enabled the approximated quantification of this additive in commercial gasoline-ethanol mixtures. This rate behavior has been obtained from the Raman spectra of gasoline-ethanol blends with different proportions of toluene. All these Raman spectra have been collected by using a self-designed, frequency precise and low-cost Fourier-transform Raman spectrometer (FT-Raman spectrometer) prototype. This FT-Raman prototype has helped to accurately confirm the frequency position of the main characteristic Raman lines of toluene present on the different gasoline-ethanol samples analyzed at smaller proportions than those commonly found in commercial gasoline-ethanol blends. The frequency accuracy validation has been performed by analyzing the same set of toluene samples with two additional state-of-the-art commercial FT-Raman devices. Additionally, the spectral information has been contrasted, with highly-correlated coefficients as a result, with the values of the standard Raman spectrum of toluene.show moreshow less

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Metadaten
Author:Valentin Ortega ClaveroGND, Andreas Weber, Werner SchröderGND, Dan CurticapeanGND
Creating Corporation:SPIE
Place of publication:München
Year of Publication:2015
Date of first Publication:2015/06/22
Page Number:7
ISBN:9781628416855
Language:English
GND Keyword:Raman-Spektroskopie; Spektralanalyse
Parent Title (English):Proceedings of SPIE: Optical Measurement Systems for Industrial Inspection IX
Volume:9525
ISSN:0277-786X
First Page:95254G
Document Type:Conference Proceeding
Open Access:Frei zugänglich
Institutes:Bibliografie
Release Date:2018/12/11
Licence (German):License LogoEs gilt das UrhG
Note:
Konferenz: SPIE Optical Metrology, 2015, Munich, Germany
DOI:https://doi.org/10.1117/12.2185100