474639.fig.002a
(a) 𝜈 9 and 𝜈 2 + 𝜈 1 2
474639.fig.002b
(b) 𝜈 1 1
474639.fig.002c
(c) 𝜈 6 + 𝜈 1 0
474639.fig.002d
(d) 𝜈 7 + 𝜈 8
Figure 2: Beer-Lambert’s law plots of C2H4 bands that were measured in the 640–3260 cm−1 region: (a) combined 𝜈 9 and 𝜈 2 + 𝜈 1 2 , (b) 𝜈 1 1 , (c) 𝜈 6 + 𝜈 1 0 , and (d) 𝜈 7 + 𝜈 8 .