<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31317296</termId><termName>ultraviolet-visible spectroscopy</termName><termType>PT</termType><termNote><![CDATA[ The study of emission and absorption spectra via absorption spectroscopy or reflectance spectroscopy over wavelengths in the ultraviolet and visible region of the electromagnetic spectrum. ]]></termNote><termCreatedDate>2026-03-30 20:25:27</termCreatedDate><relation><relationType>UF</relationType><termId>31317297</termId><termName>spectroscopy, ultraviolet-visible</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31304411</termId><termName>spectroscopy</termName><termType>PT</termType></relation></term>  </Zthes>