By Mossoba, Magdi M.
New tools for the research of suitable for eating oils, fat, and mobile lipids have lately been constructed, provided at clinical conferences, and released in peer-reviewed journals. those equipment observe to organic and foodstuff matrices, fit for human consumption oils and fat, in addition to mobile fat of pathogenic micro organism and spores, and should hide many study functions in lipidomics, foodstuff research, foodstuff security, nutrition safeguard, and counter-terrorism. this article bargains the lipid analyst crucial analytical instruments within the fields of chromatography, mass spectrometry, spectroscopy, magnetic resonance, and chemometrics. It additionally serves as a reference for fresh advancements within the speedily evolving box of lipid methodologies
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Extra resources for Lipid Analysis and Lipidomics: NewTechniques and Applications
Example text
Magdalou, L. Luukkanen, J. Taskinen, and R. Kostiainen, Comparison of Electrospray, Atmospheric Pressure Chem- Copyright (c) 2006 by AOCS Press Chapter02 2/25/06 12:44 PM Page 49 Modern Mass Spectrometry Methods 39. 40. 41. 42. 43. 44. 45. 49 ical Ionization, and Atmospheric Photoionization in the Identification of Apomorphine, Dobutamine, and Entacapone Phase II Metabolites in Biological Samples, Anal. Chem. 74:3449–3457 (2002). , R. Süß, J. Arnhold, B. Fuchs, J. Leßig, M. Müller, M. Petkovi´c, H.
33-min triacylglycerol peak, providing evidence for the existence of intact triacylglycerols in dried food residues from 700 BC. Abbreviations: TAG, triacylglycerol lipid class; DAGs, diacylglycerol; FA, fatty acid. Reproduced from (29) with permission. Soft Ionization via APPI APPI is the newest soft ionization MS method. It was first reported in 2000 by Robb et al. (32,33). The principle of photoionization for GC was introduced in the 1970s as a detection method for GC. The very new field of APPI MS was described in detail in a recent review (34).
Much of this chapter will compare and contrast the major strategies for ionization, with a brief description of some of the modern instrumental strategies for ion separation and detection. A. Moreau Fig. 1. The three essential components of a modern mass spectrometer system and examples of some of the most important technological strategies for each that have been applied to lipid research. “Hard” GC-MS-EI and LC-MS-EI In the field of lipid chemistry, the first wave of advances in mass spectrometry involved GC-MS technology and occurred in the 1970s.
