The effect of counter ions in matrix-assisted laser desorption/ionization of poly(methyl methacrylate)

Anne Mette Hoberg; David M. Haddleton; Peter J. Derrick; Anthony T. Jackson; James  Scrivens

The effect of counter ions in matrix-assisted laser desorption/ionization of poly(methyl methacrylate)

Anne Mette Hoberg, David M. Haddleton, Peter J. Derrick, Anthony T. Jackson, James Scrivens

Research output: Contribution to journal › Article › peer-review

Abstract

The role of the counter anion in positive-ion matrix-assisted laser desorption/ionization (MALDI) mass spectrometry of poly(methyl methacrylate) (PMMA) has been investigated. When PMMA was analyzed by MALDI in the presence of different alkali metal halides, A⁺X^-, ion yields decreased on changing X^- from I^- to Br^- to Cl^-. The effects of changing the alkali metal cation A⁺ were greater when X^- was chloride than when X^- was iodide. With a mixture of two different alkali metal cations, PMMA showed different affinities for the cations, dependent upon which counter anion was present.

Original language	English
Pages (from-to)	435-440
Number of pages	6
Journal	European Journal of Mass Spectrometry
Volume	4
Issue number	6
Publication status	Published - 1 Dec 1998

Cite this

@article{7aec746c5b9a4a629d929335a0efdc46,

title = "The effect of counter ions in matrix-assisted laser desorption/ionization of poly(methyl methacrylate)",

abstract = "The role of the counter anion in positive-ion matrix-assisted laser desorption/ionization (MALDI) mass spectrometry of poly(methyl methacrylate) (PMMA) has been investigated. When PMMA was analyzed by MALDI in the presence of different alkali metal halides, A+X-, ion yields decreased on changing X- from I- to Br- to Cl-. The effects of changing the alkali metal cation A+ were greater when X- was chloride than when X- was iodide. With a mixture of two different alkali metal cations, PMMA showed different affinities for the cations, dependent upon which counter anion was present.",

author = "Hoberg, {Anne Mette} and Haddleton, {David M.} and Derrick, {Peter J.} and Jackson, {Anthony T.} and James Scrivens",

year = "1998",

month = dec,

day = "1",

language = "English",

volume = "4",

pages = "435--440",

journal = "European Journal of Mass Spectrometry",

issn = "1469-0667",

publisher = "I M Publications",

number = "6",

}

TY - JOUR

T1 - The effect of counter ions in matrix-assisted laser desorption/ionization of poly(methyl methacrylate)

AU - Hoberg, Anne Mette

AU - Haddleton, David M.

AU - Derrick, Peter J.

AU - Jackson, Anthony T.

AU - Scrivens, James

PY - 1998/12/1

Y1 - 1998/12/1

N2 - The role of the counter anion in positive-ion matrix-assisted laser desorption/ionization (MALDI) mass spectrometry of poly(methyl methacrylate) (PMMA) has been investigated. When PMMA was analyzed by MALDI in the presence of different alkali metal halides, A+X-, ion yields decreased on changing X- from I- to Br- to Cl-. The effects of changing the alkali metal cation A+ were greater when X- was chloride than when X- was iodide. With a mixture of two different alkali metal cations, PMMA showed different affinities for the cations, dependent upon which counter anion was present.

AB - The role of the counter anion in positive-ion matrix-assisted laser desorption/ionization (MALDI) mass spectrometry of poly(methyl methacrylate) (PMMA) has been investigated. When PMMA was analyzed by MALDI in the presence of different alkali metal halides, A+X-, ion yields decreased on changing X- from I- to Br- to Cl-. The effects of changing the alkali metal cation A+ were greater when X- was chloride than when X- was iodide. With a mixture of two different alkali metal cations, PMMA showed different affinities for the cations, dependent upon which counter anion was present.

UR - http://www.scopus.com/inward/record.url?scp=0000691690&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0000691690

SN - 1469-0667

VL - 4

SP - 435

EP - 440

JO - European Journal of Mass Spectrometry

JF - European Journal of Mass Spectrometry

IS - 6

ER -

The effect of counter ions in matrix-assisted laser desorption/ionization of poly(methyl methacrylate)

Abstract

Other files and links

Fingerprint

Cite this