1,721,263 research outputs found
Fast Atom Bombardment Mass Spectrometry of Anionic Molybdenum and Tungsten Peroxo Complexes
No full textAbstrac
Spettrometria di massa di sostanze organiche naturali in soluzione acquosa mediante membrana siliconica. Parte 1.
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FAB‐Induced deprotonation, elimination and decomposition of 1,3‐dithiolane S‐oxides
No full textThe gas‐phase unimolecular decomposition of [M‐H]− of 1,3‐dithiolane S‐oxides has been studied using Fast Atom Bombardment (FAB) for anion generation. A comparison with the reactivity in solution is made and some differences or similarities with the chemistry in the gas‐phase are discussed. The decomposition pathways of the molecules under investigation are function of the substituents. Copyright © 1990 Journal of Heterocyclic Chemistr
Mass Displacements In A Quadrupole Mass Filter - A Tool For Evaluation of Intrinsic Dipole-moments of Ionic Species
No full textMass Displacements, already described in ion trap mass spectrometers, have been observed in a quadrupole mass filter, and found to be correlated with the dipole momentum of ions. They could be used for the evaluation of the intrinsic dipole-moments of ionic species
The role of Mass Spectrometry in the study of non-enzymatic protein glycation in diabetes
No full textChemical synthesis in mass spectrometry: Some examples in the organic, organometallic and polymer fields
No full textThe Potential of conventional mas spectrometers in the synthesis of chemicals by ion/molecule reactions is demomnstrated by acollection of examples in different chemical fields. Copyright © 1992 John Wiley & Sons, Ltd
High performance liquid chromatography combined with electrospray ionization ion trap mass spectrometry in the characterization of (methoxymethyl)melamine resins
No full textTwo (methoxymethyl)melamine resins of industrial and commercial interest have been analysed by means of high performance liquid chromatography (HPLC)/electrospray ionization ion trap mass spectrometry in order to identify the components of the complex mixtures which are produced by melamine resin manufacturing procedures. The approach provided a simple but highly valuable analytical tool, able to yield data on molecular weight and chemical structure of the components separated by HPL
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