Introduction to Fourier Transform Infrared ... - Nicolet CZ sro
Introduction to Fourier Transform Infrared ... - Nicolet CZ sro
Introduction to Fourier Transform Infrared ... - Nicolet CZ sro
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<strong>Introduction</strong>What is FT-IR?FT-IR stands for <strong>Fourier</strong> <strong>Transform</strong> InfraRed, the preferred method of infrared spectroscopy. Ininfrared spectroscopy, IR radiation is passed through a sample. Some of the infrared radiationis absorbed by the sample and some of it is passed through (transmitted). The resultingspectrum represents themolecular absorption andtransmission, creating amolecular fingerprint of thesample. Like a fingerprintno two unique molecularstructures produce thesame infrared spectrum.This makes infrared spectroscopyuseful for severaltypes of analysis.So, what information can FT-IR provide?• It can identify unknown materials• It can determine the quality or consistency of a sample• It can determine the amount of components in a mixtureThis booklet is an introduction <strong>to</strong> the concepts behind FT-IR spectroscopy. It covers both thebasic theory of FT-IR and how it works as well as discussing some the practical aspects ofFT-IR use. We hope that it gives you a good understanding of the importance and usefulnessof this powerful technique.2