Metabolomics

Dataset Information

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High-resolution extracted ion chromatography, a new tool for metabolomics and lipidomics using a second-generation orbitrap mass spectrometer


ABSTRACT: Most analytical methods in metabolomics are based on one of two strategies. The first strategy is aimed at specifically analysing a limited number of known metabolites or compound classes. Alternatively, an unbiased approach can be used for profiling as many features as possible in a given metabolome without prior knowledge of the identity of these features. Using high-resolution mass spectrometry with instruments capable of measuring m/z ratios with sufficiently low mass measurement uncertainties and simultaneous high scan speeds, it is possible to combine these two strategies, allowing unbiased profiling of biological samples and targeted analysis of specific compounds at the same time without compromises. Such high mass accuracy and mass resolving power reduces the number of candidate metabolites occupying the same retention time and m/z ratio space to a minimum. In this study, we demonstrate how targeted analysis of phospholipids as well as unbiased profiling is achievable using a benchtop orbitrap instrument after high-speed reversed-phase chromatography. The ability to apply both strategies in one experiment is an important step forward in comprehensive analysis of the metabolome.

INSTRUMENT(S): Exactive (Thermo Scientific)

SUBMITTER: Albert Koulman 

PROVIDER: MTBLS4 | MetaboLights | 2012-02-14

REPOSITORIES: MetaboLights

Dataset's files

Source:
Action DRS
MTBLS4 Other
FILES Other
a_MTBLS4_metabolite_profiling_mass_spectrometry.txt Txt
i_Investigation.txt Txt
m_MTBLS4_metabolite_profiling_mass_spectrometry_v2_maf.tsv Tabular
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Publications

High-resolution extracted ion chromatography, a new tool for metabolomics and lipidomics using a second-generation orbitrap mass spectrometer.

Koulman Albert A   Woffendin Gary G   Narayana Vinod K VK   Welchman Helen H   Crone Catharina C   Volmer Dietrich A DA  

Rapid communications in mass spectrometry : RCM 20090501 10


Most analytical methods in metabolomics are based on one of two strategies. The first strategy is aimed at specifically analysing a limited number of known metabolites or compound classes. Alternatively, an unbiased approach can be used for profiling as many features as possible in a given metabolome without prior knowledge of the identity of these features. Using high-resolution mass spectrometry with instruments capable of measuring m/z ratios with sufficiently low mass measurement uncertainti  ...[more]

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