Analysis of peat bog after solid phase extraction by FTMS

Application Note

Food & Environmental

283309

FTMS

2011

solariX 12T DataAnalysis 4.0

Dr. Matthias Witt, Bruker Daltonik GmbH, Fahrenheitstr. 4, D-28359 Bremen, Germany
Dr. Frauke Schmidt, MARUM, Leobener Str., D-28359 Bremen
Prof. Dr. Boris Koch, Alfred-Wegener Institut für Polar- und Meeresforschung, Am Handelshafen 12, D-27570 Bremerhaven

Bruker Daltonics 11-2011, FTMS-45 #283309

Abstract

Natural organic matter like NOM can be analyzed in detail
on the molecular level by FT-ICR mass spectrometry. Van
Krevelen plots can be used to compare compound classes
like Ox, NOx and SOx. Intensity weighted average values
for the H/C and O/C ratios of each compound class can be
used to compare classes and also samples. Also, double
bond distributions can be used to get insight into the
average core structures of low oxidized and high oxidized
DOM material. Based on the DBE average vs. oxygen atom
plots, the results suggest that most of the oxygen in low
oxidized DOM exists mainly in carboxyl groups, whereas
oxygen is bound as carboxyl and carbonyl groups in highly
oxidized DOM.

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