Collision-induced dissociation study of poly(2-ethyl-2-oxazoline) using survival yields and breakdown curves

Bernadett Biri, Lajos Nagy, Ákos Kuki, Eniko Rita Toke, G. Deák, M. Zsuga, S. Kéki

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Poly(2-ethyl-2-oxazoline), a synthetic polymer was analysed by mass spectrometry using different ion sources. Two distributions could be identified in the mass spectra which related to two different polymer series (one with hydrogen and hydroxyl end-groups and the other with methyl and hydroxyl end-groups). The fragmentation behaviour of the protonated oligomers was studied in a quadrupole time-of-flight mass spectrometer (MS) with electrospray, atmospheric pressure chemical ionization and direct analysis in real time soft ionization techniques. Three product ion series were identified in the MS/MS spectra independently of the ion source used. Based on the results, a mechanism was proposed for the dissociation by means of the accurate mass of the product ions, pseudo MS3 experiments and the energy dependence of the product ion intensity, i.e. breakdown curves. The survival yield method was used to highlight the correlation between the size of the oligomers and the laboratory frame collision energy.

Original languageEnglish
Pages (from-to)16-23
Number of pages8
JournalJournal of Mass Spectrometry
Volume48
Issue number1
DOIs
Publication statusPublished - Jan 2013

Fingerprint

Mass spectrometers
mass spectrometers
breakdown
Ion sources
dissociation
Ions
oligomers
Oligomers
Hydroxyl Radical
ion sources
Ionization
collisions
Polymers
curves
products
ionization
ions
polymers
mass spectra
Atmospheric pressure

Keywords

  • breakdown curves
  • fragmentation
  • poly(2-ethyl-2-oxazoline)
  • QTOF-MS/MS
  • survival yield

ASJC Scopus subject areas

  • Spectroscopy

Cite this

Collision-induced dissociation study of poly(2-ethyl-2-oxazoline) using survival yields and breakdown curves. / Biri, Bernadett; Nagy, Lajos; Kuki, Ákos; Toke, Eniko Rita; Deák, G.; Zsuga, M.; Kéki, S.

In: Journal of Mass Spectrometry, Vol. 48, No. 1, 01.2013, p. 16-23.

Research output: Contribution to journalArticle

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AU - Biri, Bernadett

AU - Nagy, Lajos

AU - Kuki, Ákos

AU - Toke, Eniko Rita

AU - Deák, G.

AU - Zsuga, M.

AU - Kéki, S.

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N2 - Poly(2-ethyl-2-oxazoline), a synthetic polymer was analysed by mass spectrometry using different ion sources. Two distributions could be identified in the mass spectra which related to two different polymer series (one with hydrogen and hydroxyl end-groups and the other with methyl and hydroxyl end-groups). The fragmentation behaviour of the protonated oligomers was studied in a quadrupole time-of-flight mass spectrometer (MS) with electrospray, atmospheric pressure chemical ionization and direct analysis in real time soft ionization techniques. Three product ion series were identified in the MS/MS spectra independently of the ion source used. Based on the results, a mechanism was proposed for the dissociation by means of the accurate mass of the product ions, pseudo MS3 experiments and the energy dependence of the product ion intensity, i.e. breakdown curves. The survival yield method was used to highlight the correlation between the size of the oligomers and the laboratory frame collision energy.

AB - Poly(2-ethyl-2-oxazoline), a synthetic polymer was analysed by mass spectrometry using different ion sources. Two distributions could be identified in the mass spectra which related to two different polymer series (one with hydrogen and hydroxyl end-groups and the other with methyl and hydroxyl end-groups). The fragmentation behaviour of the protonated oligomers was studied in a quadrupole time-of-flight mass spectrometer (MS) with electrospray, atmospheric pressure chemical ionization and direct analysis in real time soft ionization techniques. Three product ion series were identified in the MS/MS spectra independently of the ion source used. Based on the results, a mechanism was proposed for the dissociation by means of the accurate mass of the product ions, pseudo MS3 experiments and the energy dependence of the product ion intensity, i.e. breakdown curves. The survival yield method was used to highlight the correlation between the size of the oligomers and the laboratory frame collision energy.

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