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Peer-reviewedCC BYJournal of mass spectrometry : JMS

Adapting Pressurized Sample Infusion ESI-MS for Real-Time Monitoring of Heterogeneous Photoelectrocatalytic Reactions.

  • Bobby A Ryane1,2
  • Bragi Zhang1
  • Maria E Muraro1,2
  • Hannah A Trieu1
  • Heather L Buckley1,2,3,4
  • J Scott McIndoe1
4 affiliations
  1. 1Department of Chemistry, University of Victoria, Victoria, British Columbia, Canada.
  2. 2Centre for Advanced Materials and Related Technology (CAMTEC), University of Victoria, Victoria, British Columbia, Canada.
  3. 3Department of Civil Engineering, University of Victoria, Victoria, British Columbia, Canada.
  4. 4Institute for Integrated Energy Systems (IESVic), University of Victoria, Victoria, British Columbia, Canada.
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Abstract

Pressurized sample infusion (PSI) enables real-time electrospray ionization mass spectrometric (ESI-MS) monitoring of reactions through continuous delivery of solution from a pressurized vessel. Existing PSI configurations, however, are not well suited to systems involving heterogeneous catalysts with strict geometric demands, such as TiO₂ nanotube plates. Here, we describe a modified PSI configuration in which a standard media bottle fitted with a silicone septum replaces a multineck Schlenk flask. This design accommodates plate-based catalysts that cannot be easily used in conventional PSI reactors (in this specific case, TiO₂ nanotube arrays), enables controlled pressurization via needle-based gas injection, and permits insertion of capillary tubing for continuous sample infusion to the mass spectrometer. Rhodamine B was used as a model compound to monitor photocatalytic (PC) and photoelectrocatalytic (PEC) degradation under different reaction conditions. The approach enables straightforward real-time mass spectrometric monitoring of PEC and PC systems employing heterogeneous catalysts.

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Cite

BibTeXRIS
BibTeX
@article{ryane2026adapting,
  title = {{Adapting Pressurized Sample Infusion ESI-MS for Real-Time Monitoring of Heterogeneous Photoelectrocatalytic Reactions.}},
  author = {Bobby A Ryane and Bragi Zhang and Maria E Muraro and Hannah A Trieu and Heather L Buckley and J Scott McIndoe},
  journal = {Journal of mass spectrometry : JMS},
  year = {2026},
  month = nov,
  doi = {10.1002/jms.70129},
  url = {https://europepmc.org/article/MED/42968510},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Adapting Pressurized Sample Infusion ESI-MS for Real-Time Monitoring of Heterogeneous Photoelectrocatalytic Reactions.
AU  - Bobby A Ryane
AU  - Bragi Zhang
AU  - Maria E Muraro
AU  - Hannah A Trieu
AU  - Heather L Buckley
AU  - J Scott McIndoe
PY  - 2026
DA  - 2026/11/01
JO  - Journal of mass spectrometry : JMS
DO  - 10.1002/jms.70129
UR  - https://europepmc.org/article/MED/42968510
AB  - Pressurized sample infusion (PSI) enables real-time electrospray ionization mass spectrometric (ESI-MS) monitoring of reactions through continuous delivery of solution from a pressurized vessel. Existing PSI configurations, however, are not well suited to systems involving heterogeneous catalysts with strict geometric demands, such as TiO₂ nanotube plates. Here, we describe a modified PSI configuration in which a standard media bottle fitted with a silicone septum replaces a multineck Schlenk flask. This design accommodates plate-based catalysts that cannot be easily used in conventional PSI reactors (in this specific case, TiO₂ nanotube arrays), enables controlled pressurization via needle-based gas injection, and permits insertion of capillary tubing for continuous sample infusion to the mass spectrometer. Rhodamine B was used as a model compound to monitor photocatalytic (PC) and photoelectrocatalytic (PEC) degradation under different reaction conditions. The approach enables straightforward real-time mass spectrometric monitoring of PEC and PC systems employing heterogeneous catalysts.
SN  - 1076-5174
SN  - 1096-9888
ER  -