Method and device for the preparation and optical analysis of a solid sample subjected to a controlled environment, by multiple internal reflection infrared spectroscopy

US9995676B2 · kind B2 · utility

Assignee

• COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR

Inventors

• Christophe Licitra · Grenoble, FR
• Nevine Rochat · Yssingeaux, FR

Key dates

• Filing date: Dec 23, 2014
• Grant date: Jun 12, 2018
• Expiry date: Mar 23, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N1/2813
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method of preparation and optical analysis of a solid sample by multiple internal reflection infrared spectroscopy comprising: obtaining a least one substrate that is transparent to infrared light and comprises at least a main front face and a main rear face; producing at least one solid sample on the main front face of the substrate; installing around at least one part of the sample an element comprising a chamber having an aperture that opens onto the solid sample and defines a leaktight interaction zone (Zi) in relation to the outside of the chamber; feeding the chamber with a fluid with controlled parameters to control the environment in the leaktight interaction zone; sending an infrared light beam through the substrate; and recovering the beam after it has undergone multiple internal reflections in the substrate.