Organic mass spectrometry

Ion—neutral complex intermediate for loss of water from fatty acid carboxylates

NJ Jensen, GW Haas, ML Gross

Index: Jensen, Nancy J.; Haas, George W.; Gross, Michael L. Organic Mass Spectrometry, 1992 , vol. 27, # 4 p. 423 - 427

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Citation Number: 18

Abstract

Abstract Fatty acid carboxylates desorbed into the gas phase by fast atom bombardment (FAB) undergo both metastable-ion and collisionally activated dissociation (CAD) to eliminate water. Upon CAD, the water elimination competes with charge-remote fragmentation. Deuterium labeling results are in accord with the elimination occurring via an ion-neutral complex involving hydroxide ion and neutral ketene. Evidence that the ...