Figure 4
From: Isolation and purification of Cu-free methanobactin from Methylosinus trichosporiumOB3b
C-1s NEXAFS spectra. C-1s NEXAFS spectra of the isolate obtained with resin extraction and of fractions 1-4 collected during HPLC fractionation (see Figure 2). All spectra represent averages of 15 measurements collected on different spots on dry film specimens.