AllChromolith?HighResolutioncolumnsaremadeofmonolithicsilicawithacharacteristicbimodalporestructure.Chromolith?4.6mmcolumnshavemacroporeswith1.15μmdiameter,givingacolumnefficiencyexceeding140,000plates/meter.Themesoporesare15nm(150?),thesurfacemodificationisoctadecylsilanwithfullend-capping.
Disposal
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Chromatographicresidues:Aggressive,explosive(e.g.peroxides)ortoxicsubstancesinchromatographiclayersorsorbentsmustbeeliminatedusingsuitablemethods(washingout,elution)priortodisposal.Thesolventsusedforelutioncaninmanycasesbereutilized.Largerquantitiesofsorbents(e.g.fromcolumns)shouldbefreedfromsolvents(filtration,drying)andpackedintorip-resistantplasticsachets;containerI.TLCcarriermaterialsandcolumnsshouldbedisposedoftogetherwiththecorrespondingwastematerials(aluminium,glass,plastic);containerK.