8–10 Jul 2025
Huygens
Europe/Amsterdam timezone

Fragmentation mechanisms of corticosteroids, androgens and progestogens revealed by IRMPD spectroscopy

10 Jul 2025, 12:20
20m
HG00.304 (Huygens)

HG00.304

Huygens

Heyendaalseweg 135 - 6525 AX Nijmegen

Speaker

Laura Finazzi (HFML-FELIX)

Description

Steroidal hormones play a crucial role as chemical messengers within organisms. Their profound influence on various physiological processes makes them a prime focus for analysis in healthcare and many other biochemical fields. While their metabolic pathways are extensively studied and numerous MS(/MSn) spectra are available (e.g., in the HMDB), the fragmentation pathways of steroidal hormones and their derivatives in tandem mass spectrometry are yet to be completely understood. The complex fragmentation mechanisms of steroids pose significant challenges in interpreting MSn spectra and elucidating fragment structures. This work aims to characterize MS/MS fragments using infrared ion spectroscopy (IRIS) and propose potential candidate structures.

Authors

Laura Finazzi (HFML-FELIX) Vera Helmonds Marjolein Schoonus Jonathan Martens (FELIX laboratory) Giel Berden (FELIX laboratory) Jos Oomens (FELIX Laboratory)

Presentation materials

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