Institute of Physical Chemistry - CNRS/Paris Saclay University

FT-ICR 7T
Platform name
Mass Spectrometry, Analysis and Spectroscopy - SMAS
Website
https://www.icp.universite-paris-saclay.fr/plateformes/smas/
City
Orsay
Address

Institute of Physical Chemistry – UMR8000
Building 201P2 - Faculty of Sciences of Orsay
Henri Becquerel Street
91405 Orsay - France

Scientific Officer
Ms. Debora Scuderi (This e-mail address is protected against spambots. You need JavaScript enabled to view it.)
Operational manager
Mr. Romaric Lenk (This e-mail address is protected against spambots. You need JavaScript enabled to view it.)

La SMAS platform (Mass Spectrometry, Analysis and Spectroscopy) is a platform coupling mass spectrometry to tunable infrared lasers, thus allowing the structural characterization of ions within the mass spectrometer by infrared spectroscopy.

This is a particular spectroscopy (IRMPD - InfraRed Multiple Photon Dissociation) based on the induced fragmentation of a mass-selected ion by a tunable laser. the free electron laser of the Orsay Infrared Laser Center (CLIO - ICP platform) tunable in the 100-2000 cm range-1 provides information on functional groups. A OPO/OPA type laser completes the range of accessible wavelengths (2500-4000 cm-1) and allows in particular to probe the hydrogen bonds via the displacements of the NH and OH bands.

MS-like experiencesn can thus be carried out, typically combining the fragmentation of a parent ion by collisions or by spectroscopy UVPD (UV PhotoDissociation) and the structural characterization of a fragment ion by infrared spectroscopy. The FT-ICR mass spectrometer also offers high mass resolution.

Equipment

FT-ICR

Magnetic field
7 tesla
Description
FT-ICR Hybrid 7T, Apex-Qe Bruker
Specificities

hybrid instrument (Qh (Quadrupole - hexapole) interface between the ion source and the ICR cell) / IRMPD spectroscopy

Ionization method
Electrospray source and Nanospray source, positive and negative mode
Activation method
CID, SORI-CAD, ECD, IRMPD
Sample introduction
direct introduction
Expertise and services
  • IRMPD spectroscopy
  • high resolution
Other equipment

free electron laser (LEL) CLIO : wide tunability (100-2000 cm-1) and high intensity, at a repetition rate of 25 Hz (trains of pico-pulses separated by 16 ns and delivered at 25 Hz)

Optical Parametric Oscillator/Amplifier (OPO/OPA) type laser pumped by an Nd:YAG laser at a repetition rate of 10 Hz

CO2 laser of high intensity (10 W) which makes it possible to obtain a gain in sensitivity associated with the fragmentation induced by the resonant absorption of LEL or OPO/OPA photons

266nm UV laser : fourth harmonic of an Nd:YAG laser at a repetition rate of 10 Hz (ns pulse), 21 mJ at 266 nm