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Application of tandem mass spectrometry for the analysis of long-chain carboxylic acids
Authors:Arnis Kuksis  John J. Myher
Abstract:The application of MS-MS for the analysis of long-chain carboxylic acids and their esters has proved enormously successful but expensive. It is discussed mainly on basis of results obtained with different instruments with lesser attention to principles of the method, which have been adequately reviewed elsewhere. The use of electrospray ionization (ESI) has greatly increased the sensitivity of the method and has permitted assay of total lipid extracts. The combination of HPLC with electrospray and single quadrupole mass spectrometry, LC-ESI-CID-MS, rivals the triple quadrupole MS-MS application in many instances at considerably lower cost. However, LC-ESI-MS-MS remains the most desirable system at the present time for lipid ester analyses.
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