<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31341308</termId><termName>x-ray photoelectron spectroscopy</termName><termType>PT</termType><termNote><![CDATA[ A form of spectroscopy in which photoelectrons excited by a beam of monochromatic x-rays are measured in order to find the characteristic binding energies of electrons at particular levels of the sample, thus identifying elements present there. ]]></termNote><termCreatedDate>2026-03-30 20:32:03</termCreatedDate><relation><relationType>UF</relationType><termId>31341309</termId><termName>ESCA</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31341310</termId><termName>XPS</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31341311</termId><termName>electron spectroscopy for chemical analysis</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31341312</termId><termName>spectroscopy, x-ray photoelectron</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31317272</termId><termName>x-ray spectroscopy</termName><termType>PT</termType></relation></term>  </Zthes>