What is FTIR?
Infrared spectroscopy (IR) relies on the fact that most molecules absorb light in the infrared region of the electromagnetic spectrum, converting it to molecular vibration. This absorption is characteristic of the nature of the chemical bonds present in a sample.
With a spectrometer, this absorption is measured as a function of wavelength (as wave numbers, typically from 4000 - 600 cm-1). The result is an IR spectrum that serves as a characteristic "molecular fingerprint" whichcan be used to identify organic and inorganic samples.
In the past, the samples were analyzed step by step, whereby the sample was irradiated with different single wavelengths (dispersive). FT-IR on the other hand, collects the spectral data of all wavelengths in one pass. In contrast to dispersive measurements, we first obtain an interferogram, that needs to be converted to an IR spectra. This interferogram (a raw signal), represents the light intensity not as a function of wavelength, but as a function of the position of a mirror inside the interferometer. As a result, the signal must first be Fourier-transformed (FT) to produce the more familiar IR representation of intensity as a function of wavenumber. Hence the name "FT-IR" or FTIR.
With FTIR, the acquisition of spectra is much faster compared to conventional dispersive Instruments. Additionally, signal-to-noise ratio is significantly higher and since the wavelength scale is calibrated with a very precise laser, spectral measurements have much higher wavelength accuracy.
COMPACT FTIR SPECTROMETER
The ALPHA II is a compact FT-IR 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. To know more about ALPHA II please click here.
ADVANCED FTIR ANALYSIS FOR ROUTINE, QC, RESEARCH AND DEVELOPMENT
The INVENIO is made to innovate from routine quality control to advanced research and development. Whether you focus on productivity, precision or if you must comply to extensive regulations, the INVENIO supports you in every regard. To know more about INVENIO please click here.
FTIR RESEARCH SPECTROMETERS
Bruker's VERTEX 70v FT-IR Spectrometer is based on the well-known RockSolid™ interferometer and the ideal entry level systems for Advanced Research applications. The vacuum optics bench provides class leading specifications
The high-end VERTEX 80 and the VERTEX 80v vacuum FT-IR spectrometers are based on the actively aligned UltraScan™ interferometer, which provides PEAK spectral resolution and highest scanning speed.
To know more about VERTEX Series please click here.
STAND-ALONE FTIR MICROSCOPE
The LUMOS II is a stand-alone FT-IR microscope that excels in failure analysis, material research and particle analysis. It is compact, precise and features ultrafast chemical imaging by FPA technology. To know more about LUMOS II please click here.
The HYPERION is our research platform for infrared microscopy. The instrument is customizable and offers a wide range of specialized accessories for dedicated research applications. To know more about HYPERION please click here.