Figure 4
Scatter plots of the normalized integration values of bands of interest in the FTIR spectra. The abscissa represents the state of radiation, the axis on the bottom represents the values of the first session, and those above are the values of the second session denoted by the name and asterisk (i.e. Rad1*). Time between breaking the vacuum and the FTIR measurement is shown by the change from light (from 1 h) to dark colour (up to 1 week). For clarity, distances between ticks on the x axis are not directly proportional to the radiation values. |