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Home » Knowledge » Techniques » Near Infrared Spectroscopy

Near Infrared Spectroscopy

Near Infrared (NIR) spectroscopy analyses light reflected from an absorbing object over the approximate wavelength range 800-2500 nm. In this spectral region, components of molecules involving hydrogen absorb light according to overtones of molecular vibrations. The fundamentals of these vibrations are outside this range and can be detected at higher wavelengths in the mid and far infrared using other instrumentation. The NIR region is particularly useful for organic materials.