Optimization of ionization conditions for analysis of humic substances from natural waters using Electrospray Ionization Fourier Transform Ion Cyclotron Resonance mass spectrometry (ESI FTICR MS)

Separation Technology as a Powerful Tool for Unfolding Molecular Complexity of Natural Organic Matter and Humic Substances

“…Of interest is that the above consideration is consistent with the experimental spectrum shown in Figure 13.15 [details of acquisition are described in Kunenkov et al (2009) − , all of which have the highest feasible isomer counts based on their molecular formulas. The slight difference between number of feasible isomers shown in Figure 13.13 and observed peak intensities in the mass spectrum shown in Figure 13.15 can be explained by two factors.…”