<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31398317</termId><termName>electron capture detectors</termName><termType>PT</termType><termNote><![CDATA[ Extremely sensitive gas chromatography detectors that allow man-made chemicals to be detected in low concentrations through the attachment of electrons via electron capture ionization. ]]></termNote><termCreatedDate>2026-03-30 20:47:05</termCreatedDate><relation><relationType>UF</relationType><termId>31398318</termId><termName>ECDs</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31398319</termId><termName>detectors, electron capture</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31398320</termId><termName>electron capture detector</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31358258</termId><termName>quantity measuring devices for substances</termName><termType>PT</termType></relation></term>  </Zthes>