Tag Archives: FT-IR

Spectral Searching and Spectral Subtraction

With the availability of computerized data acquisition and storage it is possible to build digital libraries of standard reference spectra. The identity of an a unknown compound can often be determined by comparing its spectrum against a library of reference … Continue reading

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Determining Absorbance in IR Spectroscopy

A quantitative analysis based on the absorption of infrared radiation, although important, is less frequently encountered than those for UV/Vis absorption. One reason is the difficulty in establishing a 100% T (A = 0) baseline as the optical properties of … Continue reading

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FT-IR Spectrometer

The illustration below shows an FT-IR spectrometer equipped with a diamond ATR sample cell. The inserts show a close-up photo of the sample platform, a sketch of the ATR’s sample slot, and a schematic diagram showing how the source’s radiation … Continue reading

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