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Fourier Transform Infrared Spectrometer | FTIR Spectrometer

Instead of sequentially irradiating the sample with varying single wavelengths (dispersive), Fourier transform infrared spectrometer (FT-IR) allows to collect all spectral data in one go. For this, you need a continous 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  Fourier transform infrared spectrometer 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.

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Standard Features of Bruker Optics Fourier Transform Infrared Spectrometer (FTIR : Model ALPHA II)
  • Touch panel pc with OPUS-TOUCH software
  • CenterGlowTM IR-source, guaranteeing a constantly high emission
  • Internal Validation Unit with certified reference standard
  • Permanently aligned RockSolidTM interferometer
  • Temperature stabilized DTGS detector
  • Exchangeable QuickSnapTM sampling module
  • Platinum-ATR with durable monolithic diamond measurement interface
  • Durable robust metal housing

1. What is infrared light?

Infrared (IR) light, or more precisely infrared radiation, is an electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye but can be perceived in the form of thermal radiation. Fun fact: more than half of the energy radiated by the sun reaches the earth in the form of infrared.

2.What kind of analysis is possible?

With IR it is possible to find out what sample is made of, but also how much of a certain ingredient or component is present. Qualitative analysis is the most common application of IR spectroscopy and is mainly used in quality control of raw materials, failure analysis, and in scientific research. Quantitative analysis is widely used in industrial processes to evaluate production parameters.

3. Do I need to be an expert to use IR spectroscopy?

Definitely not. IR spectrometers are easier to use today than ever before. Most of the time there are simple software solutions (e.g. touch operation) that allow non-experts to perform IR analyses in an uncomplicated way. Even the analysis can be automated, so anyone can become a spectroscopist!

4. Can infrared light analyze all materials?

In general, yes, because organic and inorganic substances can be examined equally well with infrared radiation. The basic requirement for analysis with infrared is that the material absorbs infrared radiation. Certain substances, however, including metals and monatomic gases (e.g. noble gases) cannot be examined directly.

5. Which materials are commonly analyzed?

Especially for organic substances IR spectroscopy is a frequently used tool to obtain a lot of information. This includes the identification of polymers, drugs, pharmaceuticals, or industrial chemicals as well as the determination of contents like water in oil. IR spectroscopy is very flexible, and its applications are so numerous that you can find IR users in all industry and research areas.

Bruker- FT-IR Spectrometer