<?xml version="1.0" encoding="utf-8"?><metadata xmlns:dc="http://purl.org/dc/elements/1.1/"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dcterms="http://purl.org/dc/terms/"><dc:title xml:lang="en">time-of-flight mass spectrometry</dc:title><dc:identifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31317443</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="en">Getty Institute</dc:publisher><dcterms:created>2026-03-30 20:25:28</dcterms:created><dcterms:isPartOf xsi:type="dcterms:URI">http://AATesaurus.cultura.gencat.cat/aat/getty_en</dcterms:isPartOf><dcterms:isPartOf xml:lang="en">Tesaurus d&apos;Art i Arquitectura</dcterms:isPartOf><dc:format>text/html</dc:format> <dcterms:alternative xml:lang="en">TOF-MS</dcterms:alternative> <dcterms:alternative xml:lang="en">TOF/MS</dcterms:alternative> <dcterms:alternative xml:lang="en">spectrometry, time-of-flight mass</dcterms:alternative> <dc:description xml:lang="en"><![CDATA[ A surface-sensitive mass spectrometry technique in which an ion's mass-to-charge ratio is determined by a time measurement. Particles removed from the atomic monolayers of a surface are accelerated into a flight tube and their mass is measured by the time it takes them to reach the detector. ]]></dc:description></metadata>