IR Spectroscopy (FTIR/FTNIR)

Instrumentation Services

Infrared spectroscopy is an analytical technique that uses infrared radiation to interact with matter. The spectrum encompasses a wide range of wavelengths, and infrared radiation falls between visible light and microwave radiation, categorized into NIR, MIR, and FIR. The principle of infrared spectroscopy is that molecules absorb specific frequencies of infrared radiation, which causes vibrational transitions within the molecules. These transitions relate to the stretching and bending motions of chemical bonds between atoms. FTIR and FTNIR are powerful techniques that offer valuable insights into the molecular composition of materials by measuring the absorption of different wavelengths. Both techniques enable the identification and quantification of chemical compounds, making them invaluable tools in various scientific disciplines.

In FTIR, infrared light is passed through a sample, and the resulting spectrum is obtained by measuring the absorption of different wavelengths. The Fourier Transform technique is employed to convert the time-domain data into a frequency-domain spectrum, enhancing the speed and accuracy of data acquisition. FTNIR operates in the near-infrared region of the electromagnetic spectrum, offering similar analytical capabilities but with a focus on wavelengths closer to the visible region.