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Direct mass spectrometry-based approaches in metabolomics

AutorIbáñez, Clara ; García-Cañas, Virginia ; Valdés, Alberto ; Simó, Carolina
Palabras claveDESI
Ambient MS
Imaging MS
Mass spectrometry
Fecha de publicación2014
CitaciónComprehensive Analytical Chemistry 63(Chap.10): 235-253 (2014)
ResumenMetabolomics is one of the newest Omics technologies concerned with the identification and quantification of small molecules in a high-throughput manner. Considering the number of different types of metabolites present in a wide dynamic range of concentrations in any single living system, actual analytical technologies can still only capture a part of the metabolome. Currently, MS-based approaches yield a higher sensitivity than NMR when analyzing minimal amounts of complex mixtures. Most MS-based approaches in metabolomics involve a physical/chemical purification/fractionation prior to MS analysis, to avoid sample matrix effects, at the expense of low high-throughput performance. In the quest to achieve the maximum high-throughput production of metabolite information in the largest possible number of samples, an extensive array of direct ionization or desorption/ionization techniques have been developed and combined. In the this chapter, an overview of the main desorption/ionization techniques coupled with MS applied to direct metabolite profiling or fingerprinting is presented. © 2014 Elsevier B.V.
Versión del editorhttp://dx.doi.org/10.1016/B978-0-444-62651-6.00010-6
Identificadoresdoi: 10.1016/B978-0-444-62651-6.00010-6
isbn: 978-0-444-62650-9
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