Improvement of raman spectroscopic densimetry for carbon dioxide fluid

Kohei Takahata, Junji Torimoto, Junji Yamamoto

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We improved Raman spectroscopic densimetry for a CO2fluid using a micro-Raman spectrometer with high spectral resolution. For precise determination of CO2 density, we obtained Δ, the separation of wavenumbers between two main peaks of the CO2 Raman spectrum, with a precision of ±0.006 cm-1 (1σ). This precision will be enhanced to ±0.003 cm-1 by increasing counts, corresponding to a density precision of ±0.0009 g cm-3, which is approximately one order of magnitude less than that reported in earlier studies.

Original languageEnglish
Pages (from-to)1924-1925
Number of pages2
JournalChemistry Letters
Issue number12
Publication statusPublished - 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Chemistry


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