<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31341336</termId><termName>Fourier transform infrared spectroscopy</termName><termType>PT</termType><termNote><![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. ]]></termNote><termCreatedDate>2026-03-30 20:32:03</termCreatedDate><relation><relationType>UF</relationType><termId>31341337</termId><termName>FT-IR</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31341338</termId><termName>FTIR</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31341339</termId><termName>FTIR spectroscopy</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31341340</termId><termName>Fourier infrared spectroscopy</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31341341</termId><termName>Fourier transform IR spectroscopy</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31341342</termId><termName>Fourier transform infra-red</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31341343</termId><termName>Fourier transform infrared</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31341344</termId><termName>infrared spectroscopy, Fourier transform</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31317282</termId><termName>infrared spectroscopy</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31372135</termId><termName>Fourier transform infrared microspectroscopy</termName><termType>PT</termType></relation></term>  </Zthes>