^*Indicates author to whom correspondence should be addressed

Megabore versus microbore as the optimal column for fast gas chromatography/mass spectrometry

Aviv Amirav^*, Nitzan Tzanani, Samuel B. Wainhaus and Shai Dagan
School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel.

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Fast gas chromatography/mass spectrometry analysis of drugs in urine with hyperthermal surface ionization in supersonic molecular beams

Shai Dagan and Aviv Amirav^*
School of Chemistry, Tel Aviv University, Tel Aviv 69978, Israel.

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An ab initio study of ionised cyclobutanone and cyclopentanone. Comparison of the thermodynamic and kinetic stabilities of the distonic isomers ^"CH₂(CH₂)_n⁺C=O

Michael L. McKee
Department of Chemistry, Auburn University, Auburn, Alabama 36849, USA.
Paul M. Mayer and Leo Radom
Research School of Chemistry, Australian National University, Canberra, ACT 0200, Australia.

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Origin of clusters. III. On the possibilities of production of mixed waterorganic solute clusters under fast-atom bombardment at subzero temperatures

Marina V. Kosevich^*
Institute of Mass Spectrometry and Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK and Department of Molecular Biophysics, B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, 47, Lenin Avenue, Kharkov, 310164, Ukraine.
Oleg A. Boryak and Vadim S. Shelkovsky
Department of Molecular Biophysics, B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine, 47, Lenin Avenue, Kharkov, 310164, Ukraine.
Peter J. Derrick
Institute of Mass Spectrometry and Department of Chemistry, University of Warwick, Coventry, CV4 7AL, UK.

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The proton affinities of seven matrix-assisted laser desorption/ionization matrices correlated with the formation of multiply charged ions

Thomas J.D. Jørgensen and Gustav Bojesen^*
Department of Chemistry, Odense University, DK-5230 Odense M, Denmark.
Henrik Rahbek-Nielsen
Department of Molecular Biology, Odense University, DK-5230 Odense M, Denmark.

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Identification of isomeric tributylphosphate dimers formed by radiolysis using tandem mass spectrometry and stable isotopic labelling

Denis Lesage,^* Henri Virelizier and Christopher K. Jankowski
DCC/DPE/SPEA/SAIS, Centre détudes Nucléaires de Saclay, 91191 Gif-sur-Yvette, France.
Jean Claude Tabet
Laboratoire de Chimie Structurale Organique et Biologique, EP103, Université P. et M. Curie, 4 place Jussieu, 75252 Paris Cedex 05, France.

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Electron impact induced cyclization of ortho-cyclopropylphenylacetamides and benzamides. Prognosis for a similar reaction in solution

A.T. Lebedev,^* N.K. Karakhanova and S.S. Mochalov
Organic Chemistry Department, Moscow State University, Moscow, Russia 119899.
N. Tretyakova and R. Hass
Department of Environmental Science and Engineering, University of North Carolina at Chapel Hill, NC 27559, USA.

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Mass spectrometric fragmentation reactions of aliphatic carboxamides. A reinvestigation using metastable ions reveals new rearrangements

Dirk Kreft and Hans-Friedrich Grützmacher

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Letter: Ionized 1,4-dioxane; the structures of the m/z 44 and m/z 45 fragment ions revisited

R. Thissen, P. Mourgues and H.E. Audier
Laboratoire des Mécanismes Reactionnels, UMR CNRS 7651, Ecole Polytechnique, F-91128, Palaiseau, France.

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