Infrared (IR) spectroscopic analysis can be used to identify both organic compounds and inorganic substances. The technique uses infrared light to excite the bonds of molecules in a sample and measure the extent to which the material absorbs infrared light (electromagnetic energy) at different wavelengths. The measurement is repeated over a range of frequencies to allow the behaviour of the sample to be investigated over a wide range of IR light. From the measured interferograms, the absorption at each wavelength, i.e. the energy spectrum of each material, is obtained by Fourier transform (FT). This method provides information about the chemical bonds type and the main functional groups of the molecules in the sample, which is why infrared spectroscopy is also called "chemical fingerprinting. The method is especially well suited for the analysis of organic materials, such as archaeological textiles and dyeing materials, biological remains (e.g. bones), and various organic residues e.g. bitumen-like materials (beeswax, tar, pitch) used as adhesives in the manufacture and repair of tools (e.g. axes, knives, arrowheads), food residues etc. Specification: Globar source Standard TE-MCT and RT-DLATG detector Fully motorized and automated hardware Accomodates samples of up to 40 mm in height Visual resolution in the sub micrometer range micro-ATR(micro-invasive )/reflection (non-invasive) and macro ATR (destructive) sampling options

Image
Dataset
Dataset/2D
spectra in *.csv
data interpretation
spectra in *.txt

Bruker

Lumos II

small spot
micro
macro
10 x 10 cm 2