In-house macro reflectance FT-IR scanner

The Macro reflectance FT-IR scanner allows the visualization of the distribution of chemical bounds in a flat, macroscopic sample (up to a few square decimeters) in a nondestructive manner.

A key part of this instrument is the Bruker Alpha FT-IR spectrometer, equipped with a frontal reflectance module. This instrument allows analysis over the extended MIR-band (7500-375 cm-1) at a resolution of 4 cm-1. During scanning, spectra are acquired during 3 s using the IR-radiation reflected by the object. Both chemical distribution images (using the integrated spectral response) and reflectograms (using the total reflected intensity) can be obtained from the analyzed objects. Besides scanning, point measurements can be taken, using longer measurement times to improve the spectral quality.