^*Indicates author to whom correspondence should be addressed

Derivatization in mass spectrometry. 3. Alkylation(arylation)

John M. Halket
Drug Control Centre, King’s College London, Franklin-Wilkins Building, Stamford Street, London SE1 9NN, UK. E-mail: john.halket@kcl.ac.ukVladimir G. Zaikin
Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russia. E-mail: zaikin@ips.ac.ru

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DOI: 10.1255/ejms.619

Ion/molecule reactions of isomeric bromobutene radical cations with ammonia

Hans-Friedrich Grützmacher^* and Michael Büchner
Fakultät für Chemie der Universität Bielefeld, Universität Bielefeld, Postfach 10 01 31, D-33501 Bielefeld, Germany. E-mail: hans-friedrich.gruetzmacher@uni-bielefeld.de

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DOI: 10.1255/ejms.622

Depression of the apparent chiral recognition ability obtained in the host–guest complexation systems by electrospray and nano- electrospray ionization mass spectrometry

Masami Sawada,^* Yoshio Takai and Hitoshi Yamada
Materials Analysis Center, The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047, Japan
Muneyoshi Yoshikawa and Ryuichi Arakawa
Department of Applied Chemistry, Kansai University, Suita, Osaka 564-0073, Japan
Hiroyuki Tabuchi, Mikio Takada and Jyuichi Tanaka
Faculty of Engineering, Osaka Institute of Technology, Asahi- ku, Osaka 535-0002, Japan
Motohiro Shizuma^*
Technochemistry Department, Osaka Municipal Technical Research Institute, Joto-ku, Osaka 536- 8553, Japan
Hiroshi Yamaoka
Faculty of Science, Osaka Women’s University, Sakai, Osaka 567-0035, Japan
Keiji Hirose, Kazuo Fukuda and Yoshito Tobe
Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan

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DOI: 10.1255/ejms.624

Methylating peptides to prevent adduct ion formation also directs cleavage in collision-induced dissociation mass spectrometry

Clement Poon, Harvey Kaplan and Paul M. Mayer^*
Chemistry Department, University of Ottawa, 10 Marie Curie, Ottawa, Canada K1N 6N5

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DOI: 10.1255/ejms.582

Structure elucidation of unsaturated fatty acids after vicinal hydroxylation of the double bonds by negative electrospray ionisation low-energy tandem mass spectrometry

Morten K. Moe^* and Einar Jensen
Institute of Pharmacy, Faculty of Medicine, University of Tromsø, N-9037 Tromsø, Norway

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DOI: 10.1255/ejms.587

Cyclization of N,N-dialkylditiocarbamate and alkylxanthate derivatives of polyhalogenated pyridines in gas and liquid phases

Tatiana Yu. Samguina, Vladislav V. Lobodin, Nadezhda K. Karakhanova and Albert T. Lebedev^*
Organic Chemistry Department, Moscow State University, Leninskie gori 1/3, Moscow 119899, Russia. E-mail: lebedev@org.chem.msu.ru
Aleksey M. Sipyagin
Institute of Problems of Chemical Physics, RAS, Chernogolovka 142432, Russia

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DOI: 10.1255/ejms.595

High-energy collision-induced dissociation of oxosteroids derivatised to Girard hydrazones

William J. Griffiths^*
Department of Pharmaceutical & Biological Chemistry, The School of Pharmacy, University of London, 29-39 Brunswick Square, London WC1N 1AX, UK and Department of Medical Biochemistry & Biophysics, Karolinska Institutet, SE-17177 Stockholm, Sweden. E-mail: william.griffiths@ulsop.ac.uk
Gunvor Alvelius, Suya Liu and Jan Sjövall
Department of Medical Biochemistry & Biophysics, Karolinska Institutet, SE-17177 Stockholm, Sweden

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DOI: 10.1255/ejms.625

Investigation of methods suitable for the matrix-assisted laser desorption/ionization mass spectrometric analysis of proteins from ribonucleoprotein complexes

Moo-Jin Suh and Patrick A. Limbach^*
Rieveschl Laboratories for Mass Spectrometry, Department of Chemistry, PO Box 210172, University of Cincinnati, Cincinnati, OH 45221, USA. E-mail: Pat.Limbach@uc.edu

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DOI: 10.1255/ejms.626

Estimation of the molecular mass range of the tar from pyrolysis of casein by gas chromatography-mass spectrometry, probe mass spectrometry and size exclusion chromatography with 1-methyl-2-pyrrolidinone as eluent

B. Purevsuren, B. Avid and Ya. Davaajav
Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences, Ulaanbaatar,51, Mongolia
A.A. Herod,^* R. Kandiyoti and T.J. Morgan
Department of Chemical Engineering and Chemical Technology, South Kensington Campus, Imperial College London, London SW7 2AZ, UK

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DOI: 10.1255/ejms.592

Matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry. A comparison of fragmentation patterns of linear dextran obtained by in-source decay, post-source decay and collision-induced dissociation and the stability of linear and cyclic glucans studied by in-source decay

Sajid Bashir,^*,a,b Anastassios E. Giannakopulos and Peter J. Derrick
Institute of Mass Spectrometry, University of Warwick, Coventry CV4 7AL, UK
Peter Critchley
Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK
Andrew Bottrill_c
Institute of Mass Spectrometry, University of Warwick, Coventry, CV4 7AL, UK
Henry D. Padley
United States Army, Chemical Corp, Fort Bragg, North Carolina 28314, USA

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DOI: 10.1255/ejms.544

Characterization and de novo sequencing of Atlantic salmon vitellogenin protein by electrospray tandem and matrix-assisted laser desorption/ionization mass spectrometry

Joseph Banoub^*
Special Projects, Oceans Division, Northwest Atlantic Fisheries Center, St John’s, Newfoundland A1C 5X1, Canada and Department of Biochemistry, Memorial University of Newfoundland, St. John’s, Newfoundland A1C 5S7, Canada. E-mail: banoubjo@dfo- mpo.gc.ca or joebanoub@attglobal.net
Alejandro Cohen
Department of Biochemistry, Memorial University of Newfoundland, St. John’s, Newfoundland A1C 5S7, Canada
Atef Mansour
Aquaculture Research Section, Science, Oceans and Environment Branch, Oceans Programs Division, Northwest Atlantic Fisheries Center, St John’s, Newfoundland A1C 5X1, Canada
Pierre Thibault
Protein Analysis, Caprion Pharmaceuticals, 7150 Alexander Fleming, Montreal, Quebec H4S 2C8, Canada

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DOI: 10.1255/ejms.588

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