DESIREE electrospray ion source test bench and setup for collision induced dissociation experiments

Ruette, N. de; Wolf, Michael O.; Giacomozzi, Linda; Alexander, John D.; Gatchell, Michael; Stockett, Mark H.; Haag, Nicole; Zettergren, Henning; Schmidt, H. T.; Cederquist, H.

doi:10.1063/1.5030528

Cited by 7 publications

(5 citation statements)

References 65 publications

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“…Collision-Induced Dissociation (CID) mass spectrometry measurements were performed using the EISLAB accelerator mass spectrometer at Stockholm University. 60,61 FMN anions were produced through electrospray ionization of a solution of FMN sodium salt in methanol. After mass selection by a quadrupole mass filter, a continuous beam of [FMN-H] − was accelerated to 14 keV and passed through a collision cell containing He gas (center-of-mass energy is 120 eV).…”

Section: B Collision-induced Dissociationmentioning

confidence: 99%

Non-statistical fragmentation in photo-activated flavin mononucleotide anions

Giacomozzi

Kjær

Nielsen

et al. 2021

The Journal of Chemical Physics

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The spectroscopy and photo-induced dissociation of flavin mononucleotide anions in vacuo are investigated over the 300-500 nm wavelength range. Comparison of the dependence of fragment ion yields as a function of deposited photon energy with calculated dissociation energies and collision-induced dissociation measurements performed under single-collision conditions suggests that a substantial fraction of photo-activated ions decompose through non-statistical fragmentation pathways. Among these pathways is the dominant photo-induced fragmentation channel, the loss of a fragment identified as formylmethylflavin. The fragment ion specific action spectra reveal electronic transition energies close to those for flavins in solution and previously published gas-phase measurements, although the photo-fragment yield upon excitation of the S 2 ← S 0 transition appears to be suppressed.

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Section: B Collision-induced Dissociationmentioning

confidence: 99%

Non-statistical fragmentation in photo-activated flavin mononucleotide anions

Giacomozzi

Kjær

Nielsen

et al. 2021

The Journal of Chemical Physics

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“…The experiments were carried out using the accelerator mass spectrometer located in the Electrospray Ion Source Laboratory (EIS-LAB) 22 at the DESIREE infrastructure 23,24 , Stockholm University. In fig.…”

Section: Experimental Techniquesmentioning

confidence: 99%

“…2 we show a schematic of the setup. A complete description of the apparatus can be found elsewhere 22 .…”

Section: Experimental Techniquesmentioning

confidence: 99%

“…Assuming the fragments have approximately the same velocity as the parent ions before the collision, this spectrum is readily converted to a mass-to-charge spectrum. The destruction cross section was measured by monitoring the intensity of the primary beam as a function of the pressure in the gas cell, which was measured by means of a capacitance manometer 22 .…”

Section: Experimental Techniquesmentioning

confidence: 99%

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Decay pathways for protonated and deprotonated adenine molecules

Giacomozzi

D’Angelo

Díaz‐Tendero

et al. 2019

The Journal of Chemical Physics

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El acceso a la versión del editor puede requerir la suscripción del recurso Access to the published version may require subscriptionWe have measured fragment mass spectra and total destruction cross sections for protonated and deprotonated adenine following collisions with He at center-of-mass energies in the 20-240 eV range. Classical and ab initio molecular dynamics simulations are used to provide detailed information on the fragmentation pathways and suggest a range of alternative routes compared to those reported in earlier studies. These new pathways involve, for instance, losses of HNC molecules from protonated adenine and losses of NH 2 or C 3 H 2 N 2 from deprotonated adenine. The present results may be important to advance the understanding of how biomolcules may be formed and processed in various astrophysical environments.

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“…Other cryogenic storage ring groups are also working on similar ion injection systems. 19 Ion production for the present beamline at RIKEN is performed via electrospray ionization (ESI) but can be replaced by other low-energy ion sources. Efficient ion transportation is accomplished by RF octupoles and massselection with a quadrupole mass filter.…”

Section: Concept and Designmentioning

confidence: 99%

A cryogenic linear ion trap beamline for providing keV ion bunches

Menk

Bertier

Enomoto

et al. 2018

Review of Scientific Instruments

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A new cryogenic linear ion trap beamline has been constructed and commissioned, which serves to inject cold molecular and cluster ions into the RIKEN cryogenic electrostatic ring (RICE). Ions are created with an electrospray ion source, and a quadrupole mass filter is used for mass-selection prior to trap injection. The radio frequency octupole ion trap can be continuously loaded with ions and features a fast ion extraction mode to create short ion bunches with tens of µs duration. We report here on the simulations and development of the ion trap beamline and validate performance with the moderately heavy molecular cation methylene blue. Characterization of the novel trap design with additional wedge-shaped electrodes was carried out, which includes the determination of the temporal and spatial shape of the ion bunch and the total number of ions after extraction. Finally, these ion bunches are synchronized with the switching of a pulsed high-voltage acceleration device downstream of the trap, where the ions obtain a kinetic energy of up to 20 keV. The preparation and control of the keV ion beam are demonstrated for the ion injection into RICE.

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DESIREE electrospray ion source test bench and setup for collision induced dissociation experiments

Cited by 7 publications

References 65 publications

Non-statistical fragmentation in photo-activated flavin mononucleotide anions

Non-statistical fragmentation in photo-activated flavin mononucleotide anions

Decay pathways for protonated and deprotonated adenine molecules

A cryogenic linear ion trap beamline for providing keV ion bunches

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