Infrared spectroscopy

The laboratory is equipped with a range of FT-IR BRUKER spectrometers:

• 1 EQUINOX IFS 55 with 2 compartments attached to an IRscope1 infrared microscope with thermostated stage
• 1 VERTEX 70 with 2 compartments
• 1 VERTEX 70 attached to a micro-imager (Hyperion 3000)
• 2 ALPHA compact spectrometers
• 1 SIGIS2 scanning imaging remote sensing system for atmospheric gases

with a PICARRO G2101-I gas analyser for carbon isotope analysis.



A wide range of accessories are available for solid, liquid and gas analyses:

diffuse reflectance; diffuse reflectance with reaction chamber; attenuated total reflection (horizontal and vertical); grazing angle specular reflection; variable path-length liquid cells; and fixed and variable path-length gas cells.

FT-IR EQUINOX IFS 55 (BRUKER) coupled with the IRscope1

FT-IR VERTEX 70 (BRUKER) couped with the Hyperion 3000 microscope with a Focal Plane Array (FPA) detector

Scanning imaging remote sensing system for atmospheric gases SIGIS 2 (BRUKER)

Services:

Because of the many operating modes, experiments are usually conducted by one of our technicians.

Our main services include:

•  Mineralogical analyses:
•  bulk analysis of powders (transmitted and diffuse reflectance)
•  point analysis of grains or dust (microscopy in transmitted and reflected light mode)
• heterogeneity (imaging)
• Characterization and identification of organic and mineral phases
• Studies of surface states
• Monitoring of mineral dehydration and dehydroxylation
• Analysis of pictures and wall-paintings (pigments, bindings etc…)