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• Non End-Capped - Low Metals Silica
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• Unique Separation - Slightly Polar
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• Base Deactivated – Good Symmetry
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• pH Range - 2.0-6.0
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Excellent Chromatography
Always Begins With
Excellent Silica Manufacturing
The proprietary production of our high purity silica provides us with the control we need to ensure that
each batch of silica is made to exacting standards. Our perfectly spherical particles with consistent pore
volume and particle size distributions allows our chemists to consistently produce our “new-millennia grade”
chromatographic columns and media.
hQ™ specifications include:
- Silica metal content that is so low, that there is virtually no impact on separation mechanisms as in
older brands of silica based columns.
- Non end-capped “natural silanols” of the silica are part of the separation mechanism without producing
peak tailing for many compounds.
- Particle size distribution that is so tight that no column maker offers greater efficiency.
- Pore volume that is extremely consistent due to the nature of our proprietary chemical process making
resolution extremely reproducible.
- An incredibly uniform surface area and structure, always perfectly spherical!
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HPLC Columns
Cogent hQ™ HPLC Columns are designed for the discerning laboratory and are the result of years of product
development and research, offering unique separation advantages due to non end-capping of our High Purity Silica.
The natural, silanol activity acts as a valuable secondary separation mechanism producing a unique character.
Due to the extremely low metals activity of our hQ™ product, these columns provide analyses with a more polar
stationary phase than the average “Base Deactivated” column while still producing good peak symmetry for more polar
compounds.
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