<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">Fourier transform infrared spectroscopy</topic></authority><related type="narrower"><topic>Fourier transform infrared microspectroscopy</topic></related><related type="broader"><topic>infrared spectroscopy</topic></related><variant type="other"><topic>FT-IR</topic></variant><variant type="other"><topic>FTIR</topic></variant><variant type="other"><topic>FTIR spectroscopy</topic></variant><variant type="other"><topic>Fourier infrared spectroscopy</topic></variant><variant type="other"><topic>Fourier transform IR spectroscopy</topic></variant><variant type="other"><topic>Fourier transform infra-red</topic></variant><variant type="other"><topic>Fourier transform infrared</topic></variant><variant type="other"><topic>infrared spectroscopy, Fourier transform</topic></variant> <note xml:lang="en"><![CDATA[ Method of obtaining infrared spectra absorption, emission, photoconductivity or Raman scattering solids, liquids or gas by first collecting an interferogram of a sample signal using an interferometer, and then performing a Fourier Transform (FT) on the interferogram to obtain the spectrum. ]]></note></mads>