| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7640660 | Microchemical Journal | 2018 | 9 Pages |
Abstract
Higher molecular weight compounds were analyzed by fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS). Two different ionization methods, electrospray ionization (ESI) and graphite assisted laser desorption ionization (LDI), were used in positive and negative ionization mode. Compounds with masses up to 1450â¯u are observed. The results were evaluated based on the number of formulas in the molecular formula classes and their distribution in double bond equivalents versus carbon number plots (DBE-nC plots). The results from both ionization polarities show significant differences regarding the quality of observed molecular formulas and both ionization methods.
Related Topics
Physical Sciences and Engineering
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Authors
Nadja Dittrich, Jan Zuber, Philipp Rathsack,