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Thin-layerchromatography(TLC)platesforadsorption,partition,andion-exchangetechniques.Sixmediachoiceswithglass,polyester,andaluminumbackings.Silica-basedadsorbentlayersinSigma-AldrichTLCplatesincorporateapolymericbinder;highlypurifiedsilicagelplatesincorporateagypsum/polymerbinder.• Silicagel-forweaklytostronglypolarseparations,poresize60?• Highpuritysilicagel-acidwashedforseparationofaflatoxins• Cellulose-forpartitionchromatography,(SigmaCellType100Cellulose)• CellulosePEI-forseparationofweakanions(aminoacids,peptides)PEIplatesmayturnslightlyyellow,affectingseparation.Pre-developplatesindistilledwatertominimizeyellowcolor.• Chiralsilica-forseparationofopticallyactiveisomersbyligandexchange,poresize60?
Sigma-AldrichisaregisteredtrademarkofSigma-AldrichCo.LLC
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