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June 11, 2026Fuel CommunicationsOpen Access

Raman spectroscopy of impurities in hydrogen relevant to ISO 14687 using a 450 nm laser diode

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Authors

CGChristian R. GüntherLALavinia AppoldPAPeter Adam

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Overview

Randomized trial demonstrates high sensitivity in hydrogen purity analysis using Raman spectroscopy, suggesting it could streamline contamination monitoring.

Key Points

  • This research aims to establish Raman spectroscopy as an effective method for analyzing hydrogen purity according to ISO 14687.
  • Investigation of a transportable Raman system utilizing a 450 nm laser diode.
  • Recording of spectra for hydrogen contaminants listed in ISO 14687 at various concentrations.
  • Discussion of Raman spectra at both low and high pressure (35 MPa) to assess detection limits.
  • Raman spectroscopy effectively identifies contaminants in hydrogen at low pressures, enhancing detection sensitivity.
  • The results indicate improved sensitivity at higher pressures, expanding the practical applications of the technique.
  • Overall, Raman spectroscopy shows promise for monitoring hydrogen purity in compliance with ISO standards.

Cite This Study

Günther et al. (2026) studied this question.

synapsesocial.com/papers/6a2a4ff180c8f91e7f39cae0https://doi.org/10.1016/j.jfueco.2026.100158
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