Improvement of Raman Spectroscopic Densimetry for Carbon Dioxide Fluid

• Kohei Takahata

  Graduate School of Science, Hokkaido University

• Junji Torimoto

  The Hokkaido University Museum

• Junji Yamamoto

  The Hokkaido University Museum

抄録

We improved Raman spectroscopic densimetry for a CO2 fluid 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.

収録刊行物

• Chemistry Letters

  Chemistry Letters 43 (12), 1924-1925, 2014-12

  Oxford University Press (OUP)

キーワード

• General Chemistry

詳細情報

• CRID: 1360283694082306944
• NII論文ID: 130004703967
• DOI: 10.1246/cl.140782
• ISSN: 13480715
• ISSN: 03667022
• Web Site: https://academic.oup.com/chemlett/article-pdf/43/12/1924/55637002/cl.140782.pdf
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