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Exsil, manufactured by Exmere UK, has many years of silica and bonding experience and is now firmly established as a useful alternative to the traditional spherical HPLC materials, such as Spherisorb. Exsil is a spherical uniform totally porous silica designed for use in conventional HPLC in both analytical and preparative modes. Exsil is manufactured by a novel process using advanced technology which ensures total batch-tobatch reproducibility. ES Industries has supplied extremely efficient and reproducible Exsil packing columns for a number of years. We carry a complete and extensive inventory of all Exsil packings, in addition to strict quality control guidelines for all our Exsil packed columns.
Exsil is available in two pore sizes:
90 and 100 A.
Four particle sizes:
3 µm–for high resolution, high efficiency, and fast separations
5 µm–the established choice for conventional analytical columns
10 µm–good resolution with high permeability
15 µm–preparative grade with characteristics analogous to smaller particles allowing predictable scale-up.
A wide selection of bonded phases is available to match a variety of analytical separations.
Exsil - Nitrile
A moderately polar phase for either normal or reverse phase. It is particularly useful in separations requiring gradient elution due to its rapid equilibration with mobile phases
Exsil - Octyl
For reverse phase separation of solutes of moderate polarity and for rapid analysis
Exsil - ODS
The standard material for reverse phase separations.
Exsil - ODS-AB
An ODS material that is more deactivated than the standard ODS for use with acidic, neutral, or basic compounds without buffer or additive restrictions between pH 2 and 7.
Exsil ODS-B
A highly base deactivated ODS material for the analysis of basic and neutral compounds.
Exsil SAX
A strong anion exchanger capable of separations of the highest efficiency, comparable with those usually associated with reverse phase chromatography.
Exsil SCX
A strong cation exchanger for the separation of cationic species and ligand exchange.
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