Analytical and Bioanalytical Chemistry

, Volume 411, Issue 28, pp 7399–7408 | Cite as

Characterization of fuel gases with fiber-enhanced Raman spectroscopy

  • Anne Sieburg
  • Andreas Knebl
  • Jikku M. Jacob
  • Torsten FroschEmail author
Research Paper
Part of the following topical collections:
  1. Young Investigators in (Bio-)Analytical Chemistry


Common gaseous fuels are mixtures of several components. As the properties of the fuels can vary with the composition, but combustion needs to be stable, reliable analytical methods are highly sought after. Raman spectroscopic methods have proved their suitability for the characterization of diverse gaseous mixtures. They have the potential to overcome existing limitations of established technologies, since they are fast, non-consumptive, and accurate. Here, we demonstrate a gas sensor based on fiber-enhanced Raman spectroscopy (FERS) for fuel gas monitoring. Online detection of all gas components, including alkanes, carbon dioxide (CO2), nitrogen (N2), and hydrogen sulfide (H2S), for varying concentration ranges from tens of vol% down to the ppm level enables a comprehensive characterization of the fuels. The developed sensor system features a pinhole assembly which sufficiently reduces the background signal from the fiber to enable the detection of C2–C4 alkanes occurring in low concentrations. Detection limits in the low ppm region were achieved for the minor components of fuel gases, which allow the online monitoring of necessary purification steps, e.g., for biogas. The obtained results indicate that fiber-enhanced Raman sensors have the potential for comprehensive online and onsite gas sensing for fuel gas quality control.

Graphical abstract


Raman spectroscopy Fiber sensor Hollow core photonic crystal fiber Fuel gas Sensing Natural gas Biogas 


Funding information

Funding was from the German Federal Ministry for Education and Research BMBF (03WKCV03E) and the Deutsche Forschungsgemeinschaft (DFG: CRC 1076 AquaDiva).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

216_2019_2145_MOESM1_ESM.pdf (250 kb)
ESM 1 (PDF 249 kb)


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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Leibniz Institute of Photonic TechnologyJenaGermany
  2. 2.Max Planck Institute for BiogeochemistryJenaGermany
  3. 3.Institute of Physical ChemistryFriedrich Schiller UniversityJenaGermany
  4. 4.Abbe Center of PhotonicsFriedrich Schiller UniversityJenaGermany

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