Fourier-transform infrared spectroscopy (FTIR)

Our Fourier-transform infrared spectroscope is a Thermo Nicolet 6700. An infrared source radiates through the sample material or reflects off the material, of which the IR spectrum can be obtained and converted by a Fourier transform. This spectrum can be compared with a database or a series of known spectra. FTIR can measure a wide range of organic and inorganic compounds that have a specific IR spectrum and even oxidation states of minerals. However, quantitative analysis is challenging. It requires about 10 – 50 mg of sample material as solid dry powder or ground and mixed with KBr or CsI pressed in a pellet.