Improvement of raman spectroscopic densimetry for carbon dioxide fluid

Kohei Takahata; Junji Torimoto; Junji Yamamoto

doi:10.1246/cl.140782

Improvement of raman spectroscopic densimetry for carbon dioxide fluid

Kohei Takahata, Junji Torimoto, Junji Yamamoto

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	1924-1925
Number of pages	2
Journal	Chemistry Letters
Volume	43
Issue number	12
DOIs	https://doi.org/10.1246/cl.140782
Publication status	Published - 2014
Externally published	Yes

All Science Journal Classification (ASJC) codes

Chemistry(all)

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10.1246/cl.140782

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title = "Improvement of raman spectroscopic densimetry for carbon dioxide fluid",

abstract = "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.",

author = "Kohei Takahata and Junji Torimoto and Junji Yamamoto",

note = "Publisher Copyright: {\textcopyright} 2014 The Chemical Society of Japan.",

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AU - Takahata, Kohei

AU - Torimoto, Junji

AU - Yamamoto, Junji

PY - 2014

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AB - 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.

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Improvement of raman spectroscopic densimetry for carbon dioxide fluid

Abstract

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