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FTIR – Fourier Transform Infrared

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Fourier Transform Infra Red, more commonly known as FT-IR, is the preferred method for infrared spectroscopy. Developed in order to overcome the slow scanning limitations encountered with dispersive instruments, with FT-IR the infrared radiation is passed through a sample. The measured signal is referred to as an interferogram. Performing a Fourier transform on this signal data results in a spectrum identical to that from conventional (dispersive) infrared spectroscopy, but results are much faster with results in seconds, rather than minutes.


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