^*Indicates author to whom correspondence should be addressed

Chemometric approach to evaluate the parameters affecting electrospray: application of a statistical design of experiments for the study of arginine ionization

Laurence Charles,^a,* Stéphanie Caloprisco,^b Salimo Mohamed^a and Michelle Sergent^b
aJE 2421 TRACES, Universités d’Aix-Marseille I et III, Faculté de Saint-Jérôme, Case 511, 13397 Marseille, France
^b Laboratoire de Méthodologie de la Recherche Expérimentale, Université d’Aix-Marseille III, 13397 Marseille, France

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DOI: 10.1255/ejms.759

Electron-impact ionization of mandelic acid and mandelic acid methyl ester as prototypes for the C₆H₅CH(OH)-X system: ionization and appearance energies, activation energies and enthalpies of formation

Joachim Opitz
Universität Stuttgart, Institut für Organische Chemie, Pfaffenwaldring 55, D-70569 Stuttgart, Germany

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DOI: 10.1255/ejms.767

Differentiation of ionised benzimidazole from its isomeric α-distonic ion by collision-induced dissociation and neutralisation–reionisation mass spectrometry

Thanasis Karapanayiotis^a and Richard D. Bowen^*
Chemical and Forensic Sciences, School of Life Sciences, University of Bradford, Bradford, West Yorkshire BD7 1DP. E-mail: r.d.bowen@bradford.ac.uk

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DOI: 10.1255/ejms.775

Studies on the mechanism of the Hoesch reaction and its modified reaction with low temperature mass spectrometry

Shaobai Li, ^a,* Yuqi Li^b and Hongyan Zheng^a
aNational Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China. E-mail: bsli@lzu.edu.cn
^bDepartment of Chemical Physics, University of Science and Technology of China, Hefei 230026, China

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DOI: 10.1255/ejms.771

Rapid, accurate and precise quantitative drug analysis: comparing liquid chromatography tandem mass spectrometry and chip-based nanoelectrospray ionisation mass spectrometry

Louisa N. Alfazema,^a,b,* Don S. Richards,^b Sylvie Gélébart,^b John C. Mitchell,^a Martin J. Snowden^a
aMedway Science, University of Greenwich, Medway Camps, Chatham, Kent ME4 4TB, UK
^bAnalytical R and D, Pfizer Global Research & Development, Ramsgate Road, Sandwich, Kent CT13 9NJ, UK

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DOI: 10.1255/ejms.772

Gas-phase chemistry of the negative ions of fully-protected peptides by high-resolution electrospray ionization tandem mass spectrometry

Anna Napoli, Leonardo Di Donna, Giovanni Sindona^* and Elena Urso
Dipartimento di Chimica, Università della Calabria, via Pietro Bucci cubo 12/C, I-87030, Arcavacata di Rende (CS) – Italy

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DOI: 10.1255/ejms.769

Structural characterization of phosphatidylcholines by atmospheric pressure photoionization mass spectrometry

Arnaud Delobel, David Touboul and Olivier Laprévote*
Laboratoire de Spectrométrie de Masse, Institut de Chimie des Substances Naturelles, (ICSN-CNRS) , Av. de la Terrasse, F-91198 GIF-SUR-YVETTE Cedex, France

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DOI: 10.1255/ejms.760

Identification of fentanyl, alfentanil, sufentanil, remifentanil and their major metabolites in human urine by liquid chromatography/tandem mass spectrometry for doping control purposes

Mario Thevis,^* Hans Geyer, Daniel Bahr and Wilhelm Schänzer
Institute of Biochemistry, German Sport University Cologne, Carl-Diem Weg 6, 50933 Cologne, Germany

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DOI: 10.1255/ejms.761

Positive-ion electrospray ionisation mass spectrometry of acetone- and acetonitrile-soluble fractions of coal derived liquids

Alan A. Herod,^a,* Marcos Millan,^a Trevor Morgan,^a Wenying Li,^b Jie Feng^b and Rafael Kandiyoti^a
aDepartment of Chemical Engineering, South Kensington Campus, Imperial College London, London SW7 2AZ, UK. E-mail: a.herod@imperial.ac.uk
^bKey Laboratory of Coal Science and Technology (Ministry of Education and Shanxi Province), Taiyuan University of Technology, Taiyuan 030024, Shanxi, P.R. China

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DOI: 10.1255/ejms.768

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