Research Article

Quantitative Raman Spectroscopic Determination of the Composition, Pressure, and Density of CO2-CH4 Gas Mixtures

Figure 3

Raman peak positions for the CH4υ1 peak (a) and the lower (b) and upper (c) members of the CO2 Fermi diad and the Fermi diad splitting (d) for different CO2-CH4 gaseous mixtures at room temperature as a function of pressure.
(a)
(b)
(c)
(d)