Literature DB >> 20435487

Generation of CsI cluster ions for mass calibration in matrix-assisted laser desorption/ionization mass spectrometry.

Xianwen Lou1, Joost L J van Dongen, E W Meijer.   

Abstract

A simple method was developed for the generation of cesium iodide (CsI) cluster ions up to m/z over 20,000 in matrix-assisted laser desorption/ionization mass spectrometry (MALDI MS). Calibration ions in both positive and negative ion modes can readily be generated from a single MALDI spot of CsI(3) with 2-[(2E)-3-(4-tert-butylphenyl)-2-methylprop-2-enylidene] malononitrile (DCTB) matrix. The major cluster ion series observed in the positive ion mode is [(CsI)(n)Cs](+), and in the negative ion mode is [(CsI)(n)I](-). In both cluster series, ions spread evenly every 259.81 units. The easy method described here for the production of CsI cluster ions should be useful for MALDI MS calibrations. Copyright 2010 American Society for Mass Spectrometry. Published by Elsevier Inc. All rights reserved.

Entities:  

Year:  2010        PMID： 20435487     DOI： 10.1016/j.jasms.2010.02.029

Source DB:  PubMed          Journal:  J Am Soc Mass Spectrom        ISSN： 1044-0305            Impact factor:   3.109


  20 in total

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5.  MALDI ionization: the role of in-plume processes.

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8.  Mass calibration of a matrix-assisted laser desorption/ionization time-of-flight mass spectrometer including the rise time of the delayed extraction pulse.

Authors:  E Moskovets; B L Karger
Journal:  Rapid Commun Mass Spectrom       Date:  2003       Impact factor: 2.419

Review 9.  Accurate mass measurement for the determination of elemental formula--a tutorial.

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10.  A simple algorithm improves mass accuracy to 50-100 ppm for delayed extraction linear matrix-assisted laser desorption/ionization time-of-flight mass spectrometry.

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Journal:  Rapid Commun Mass Spectrom       Date:  2002       Impact factor: 2.419
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  3 in total

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2.  Clusters of Monoisotopic Elements for Calibration in (TOF) Mass Spectrometry.

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3.  Laser Desorption Ionization of As2Ch3 (Ch = S, Se, and Te) Chalcogenides Using Quadrupole Ion Trap Time-of-Flight Mass Spectrometry: A Comparative Study.

Authors:  Ravi Madhukar Mawale; Mayuri Vilas Ausekar; Lubomír Prokeš; Virginie Nazabal; Emeline Baudet; Tomáš Halenkovič; Marek Bouška; Milan Alberti; Petr Němec; Josef Havel
Journal:  J Am Soc Mass Spectrom       Date:  2017-08-29       Impact factor: 3.109
  3 in total

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