hplc columns ...
Category: Monitoring & Testing
Subcategory: Environmental Analysis
Keyword: hplc columns
This is the original Luna C18 and can be used when maximum retention of non polars is desired.
Octadecyl silane ligands are bound to the silica surface, making for a very hydrophobic phase with great methylene selectivity.
5-carbon chain ligands are bound to the silica surface offering a lesser degree of hydrophobic selectivity compared to C8 phase columns.
Octyl silane groups bound to the silica surface with non-polar end capping offer moderate hydrophobic selectivity and virtually eliminate silanol interactions.
Nitrile groups bound to the silica surface offer a unique polar selectivity under reversed phase or normal phased conditions.
Amino groups bound to the silica surface serve as a weak anion exchanger and offer polar selectivity under reversed phase and normal phase conditions.
Pentaflourophenyl groups bound to silica surface for a unique aromatic selectivity due to highly electronegative fluorine atoms on the periphery of the phenyl ring ligand.
Phenyl groups are bound to silica surface using a 5-carbon chain for a balanced aromatic and hydrophobic selectivity.
Strong cation exchange groups are bound to the silica surface for a strong selectivity of positively charged compounds.
The silica surface is covered with cross-linked diol groups for polar selectivity under hydrophilic liquid chromatography conditions.
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