Instead of sequentially irradiating the sample with varying single wavelengths (dispersive), FT-IR allows to collect all spectral data in one go. For this, you need a continuum source of light to produce light over a broad range of infrared wavelengths. The infrared light then passes through an interferometer and is afterwards directed at the sample. The ALPHA II is a compact FTIR Bruker Alpha spectrometer with a footprint the size of a laptop. It is used for chemical analysis and enables you to do quality control, quantifications and verification of raw materials.
One of the most important applications of the ALPHA II is quality control in various industries like polymer, chemistry, pharma, automotive, electronics and packaging. The predominant question in quality control is to verify that the sample meets its specifications. The analysis is performed automatically by comparison of the measurement result against reference data.The ALPHA II lets you chemically analyze any kind of sample, whether it is solid, liquid or gas. Even valuable paintings, brilliant diamonds and excellent wines can be analyzed by the Bruker FTIR easily and efficiently.
Not only is the acquisition of FT-IR spectra much faster than by conventional dispersive Instruments. Additionally, these spectra show a significantly higher signal-to-noise ratio and, since the wavelength scale is calibrated with a very precise laser, spectra obtained have much higher wavelength accuracy.