Raman spectroscopy of a coal liquid shows that fluorescence interference is minimized with ultraviolet excitation.

@article{Asher1984RamanSO,
  title={Raman spectroscopy of a coal liquid shows that fluorescence interference is minimized with ultraviolet excitation.},
  author={Sanford A. Asher and C. R. Johnson},
  journal={Science},
  year={1984},
  volume={225 4659},
  pages={
          311-3
        }
}
The first ultraviolet resonance Raman measurements of a coal liquid are reported. The spectra detail the presence of numerous polycyclic aromatic hydrocarbons with ring systems similar to those of naphthalene, fluorene, phenanthrene, pyrene, and triphenylene . The ultraviolet resonance Raman measurements of this highly complex sample show no significant interference from fluorescence. The lack of fluorescence interference and the high selectivity indicate that ultraviolet resonance Raman… 
View on PubMed
pitt.edu
190 Citations
Highly Influential Citations
8
Background Citations
58
Methods Citations
7
Results Citations
3

190 Citations

A new selective technique for characterization of polycyclic aromatic hydrocarbons in complex samples: UV resonance Raman spectrometry of coal liquids.

It is demonstrated that the resonance Raman spectra of PAH derivatives can be selectively observed in solutions of coal liquids and different UV excitation wavelengths result in the selective Raman enhancement of different polycyclic aromatic hydrocarbon ring systems.

UV Resonance Raman Characterization of Polycyclic Aromatic Hydrocarbons in Coal Liquid Distillates

Ultraviolet resonance Raman spectroscopy has been used to characterize the polycyclic aromatic hydrocarbon composition of a series of distillates of coal-derived liquids. The UV Raman spectra easily…

Analytical applications of ultraviolet resonance Raman spectroscopy

UV Raman spectroscopy of hydrocarbons

The hydrocarbon UV Raman spectra exhibit greatly improved signal–to–noise ratio when in the neat liquid or solution state compared with the neat solid state, suggesting that some surface degradation occurs under the conditions used here.

UV Raman Spectroscopy of Oilsands-Derived Bitumen and Commercial Petroleum Products

Raman and resonance Raman spectroscopy with ultraviolet excitation were performed on several sample types of oilsands-derived bitumen, highly heterogeneous mixtures of hydrocarbons, and commercial…

Ultraviolet Resonance Raman Study of Nylon-6

Ultraviolet resonance Raman spectra of nylon-6 have been investigated with the use of a quasi-continuous UV excitation source based on cw mode-locked Nd:YAG and Nd:YLF lasers. The selective…

In Situ Resonant UV-Raman Spectroscopy of Polycyclic Aromatic Hydrocarbons

PAHs are hazardous and persistent pollutants, also found as byproducts of some petrolchemical reaction (e.g., MTH) in relation to the catalyst deactivation, i.e., to the formation of coke species.…

Detection of Benzene and Trichloroethylene in Sooting Flames

The utility of resonance Raman spectroscopy as an analytical method is studied for application to multicomponent sooting flames. Far-ultraviolet resonance Raman spectra of benzene and…

An ultraviolet Raman wavelength for the in-situ analysis of organic compounds relevant to astrobiology

Advances in Raman spectroscopy methods for catalysis research

...

References

SHOWING 1-3 OF 3 REFERENCES

Ultraviolet resonance Raman spectrometry for detection and speciation of trace polycyclic aromatic hydrocarbons

A novel UV resonance Raman spectrometer has been utilized for the UV resonance Raman study of polycyclic aromatic hydrocarbons (PAH). This work represents the first application of Raman spectrometry…

Polycyclic Aromatic Hydrocarbons

Polycyclic HydrocarbonsVol. 1. Pp. xxvi + 487. 126S. (With a chapter on carcinogenesis by Regina Schoental.) Vol. 2. Pp. lvii + 487. 140s. By E. Clar. (London and New York: Academic Press; Berlin:…

Development of a new UV resonance Raman spectrometer for the 217–400‐nm spectral region

The design and construction of a new UV resonance Raman spectrometer continuously tunable between 217–750 nm are described. The excitation source is based on a YAG laser which is frequency doubled or…