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Macherey-Nagel
Macherey-Nagel HPLC Column VA 300/6.5 NUCLEOGEL Special SUGAR Ca
Polymer-based HPLC phase for separation of sugars. Sulfonated polystyrene / divinylbenzene resins in Ca ionic form. Separation mechanism includes steric exclusion, ligand exchange and partition effects, ligand exchange being the predominant force, since the hydrated metal ions form strong interactions with the hydroxyl groups of the sample molecules. The intensity of these interactions decreases in the sequence Pb, Ca, Na.Zobraziť viac
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