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Laser Desorption/Ionization and Electrospray Ionization of Marine Natural Organic Matter: A Comparison

Bruker Daltonics

Laser Desorption/Ionization and Electrospray Ionization of Marine Natural Organic Matter: A Comparison

18 Jan 2016

This poster describes a study in which marine natural organic matter (NOM) of sediment samples of different depths has been characterized by ESI- and LDI-FT-ICR mass spectrometry in negative ion mode. NOM is a very complex and polydisperse mixture of highly degraded organic compounds present in surface, ground and sediment water. The detection of compounds in NOM by mass spectrometry depends on the ionization technique. Ultra-high mass resolution of several hundred thousands is necessary to separate isobaric mass peaks of complex marine NOM samples on the molecular level. Therefore, FT-ICR mass spectrometry with high magnetic field of 12 Tesla was used for this study.

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Mass SpectrometryMass spectrometry (MS) is a powerful analytical technique used to identify and quantify molecules based on the mass-to-charge ratio of gas-phase ions. It provides detailed information about the structure, composition, and properties of compounds and is widely used across fields such as environmental monitoring, materials science, drug discovery and development, food and beverage testing, and wider chemical research. Key MS techniques include tandem mass spectrometry (MS/MS), liquid chromatography–mass spectrometry (LS-MS) and inductively coupled plasma (ICP-MS). Choosing from these wide range of techniques and technologies can be a daunting task, so keep up to date with scientific applications, performance expectations, and customer reviews here all in one place. Visit our product directory to receive quotes direct from the manufacturer. Water AnalysisAnalytical methods used to test the purity of drinking water include determining the level of contaminants abides to the level set by the Environmental Protection Agency (EPA).Environmental AnalysisEnvironmental analysis describes a variety of tests that determine the effect of chemicals, processes and particulates such as persistent organic pollutants (POPs) have on the environment.Dissolved Organic MatterElectrospray Ionization

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