<?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">solid-phase microextraction</dc:title><dc:identifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31304517</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="en">Getty Institute</dc:publisher><dcterms:created>2026-03-30 20:21:54</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">SPME</dcterms:alternative> <dcterms:alternative xml:lang="en">microextraction, solid-phase</dcterms:alternative> <dc:description xml:lang="en"><![CDATA[ Sample extraction technique used for chromatographic analysis of dilute solutions in difficult matrices, liquid and gaseous. Solid-phase microextraction (SPME) has two discrete steps. Extraction is achieved by solute absorption from the sample matrix into a thick layer of silicone or related adsorptive material. Analytes are then transferred into a chromatography inlet system by gaseous or liquid means.  ]]></dc:description></metadata>