<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31343753</termId><termName>Fenton’s reagent</termName><termType>PT</termType><termNote><![CDATA[ Chemical oxidant; a solution of hydrogen peroxide and iron sulfate used for in-situ oxidation of organic contaminants such as trichloroethylene.   ]]></termNote><termCreatedDate>2026-03-30 20:32:42</termCreatedDate><relation><relationType>UF</relationType><termId>31343754</termId><termName>reagent, Fenton&apos;s</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31319861</termId><termName>oxidant</termName><termType>PT</termType></relation></term>  </Zthes>