<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">chromatography</topic></authority><related type="narrower"><topic>ion-exchange chromatography</topic></related><related type="narrower"><topic>liquid chromatography</topic></related><related type="narrower"><topic>thin layer chromatography</topic></related><related type="narrower"><topic>gas chromatography</topic></related><related type="narrower"><topic>paper chromatography</topic></related><related type="narrower"><topic>size exclusion chromatography</topic></related><related type="narrower"><topic>electrochromatography</topic></related><related type="narrower"><topic>micellar electrokinetic chromatography</topic></related><related type="broader"><topic>analysis and testing techniques</topic></related><variant type="other"><topic>chromatographic analysis</topic></variant><variant type="other"><topic>chromatographic processes</topic></variant> <note xml:lang="en"><![CDATA[ The separation of chemical substances by making use of differences in the rates at which the substances travel through or along a stationary medium. ]]></note></mads>