Figure 3
From: High Energy Radical Chemistry Formation of HCN-rich Atmospheres on early Earth
Comparison of the discharge plasma emission spectra of NH3: CO: H2O and various gas and vapour mixtures in nitrogen. Panel A shows the emission spectrum of the NH3 + CO + H2O glow discharge recorded using time–resolved spectroscopy between 1 and 5 μs after the discharge pulse. Other panels show emission spectra of different mixtures in a similar time domain: Panel B: HCONH2 + N2 + H2O; Panel C: HCHO + N2 + H2O; Panel D: CH3OH + N2 + H2O; Panel E: CH4 + N2 + H2O; and Panel F: CH3CN + N2 + H2O.
