<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31341300</termId><termName>proton probe microanalysis</termName><termType>PT</termType><termNote><![CDATA[ Technique in microanalytical chemistry in which a finely focused proton beam is used to excite an x-ray spectrum. ]]></termNote><termCreatedDate>2026-03-30 20:32:03</termCreatedDate><relation><relationType>UF</relationType><termId>31341301</termId><termName>microanalysis, proton probe</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31341302</termId><termName>proton probe x-ray microanalysis-</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31317259</termId><termName>microanalysis</termName><termType>PT</termType></relation></term>  </Zthes>