28096-13-1Relevant academic research and scientific papers
Contrasting behavior of pentafluorophenoxyacetone and pentafluorobenzyloxyacetone in electron impact and electron capture mass spectrometry
Xu, Linxiao,Huang, Yulin,Giese, Roger W.
, p. 615 - 620 (1998)
Towards the goal of finding new ketone electrophores suitable as molecular labels for electrophoric release tags, pentafluorophenuxyacetone (1) and pentafluorbenzyloxyacetone (2) were prepared. Both ketones were evaluated by electron capture (EC) and electron impact (EI) modes of mass spectrometry (MS). By EC-MS, 1 nearly gave a single ion (as desired), whereas 2 gave many ions. This behavior was completely reversed in EI-MS. To account for certain ion fragments in the EC mass spectrum of 2, an anion radical MCLafferty-type rearrangement and loss of a carbene neutral were postulated. Electron impact of 1 gave an abundant ion at m/z 117 (C5F3+), which was suggested to be a diyne cation.
Release tag compounds producing ketone signal groups
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, (2008/06/13)
A release tag reagent suitable for use in the chemical analysis of a substance to be detected comprises signal, release, and reactivity groups. A class of release tag compounds that are cleaved to release as signal groups very stable electrophoric ketones which are sufficiently volatile for determination in the gas phase of an analytical reaction mixture is disclosed.
Molecular analytical release tags and their use in chemical analysis
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, (2008/06/13)
A release tag reagent suitable for use in the chemical analysis of a substance to be detected, which substance contains reactive groups, such as for, but not limited to gas phase detection groups, which reagent comprises three covalently bonded groups: a
