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. 2021 Oct 26;22(21):11540. doi: 10.3390/ijms222111540

Figure 7.

Figure 7

Side and top view photographs of the plasma reactor (see also Figure 4a) inside the sample compartment of the FTIR spectrometer, for in situ single-pass absorption measurements. The infrared passage through KBr windows is marked by the red arrows. The Faraday cage design of the reactor and its coaxial power supply cable protects against any possible electromagnetic perturbation to the FTIR instrument.