Click HERE for Frequently Asked Questions (FAQ) about Cogent TYPE-C™ Silica HPLC columns.

Click HERE for more Information about TYPE-C™ Columns.

Click HERE for Application Notes.

Our goal is to provide the best Customer Experience possible. If you cannot find what you are looking for, have any questions or would like to give us a suggestion please use any of the following ways to contact us directly. We would love to hear from you.

  • Call us: 8:30AM – 6:00PM EST 1-732-380-8900 and hit 0#

  • Fax to us: 1-910-769-9435

  • Email Customer Support

We are always ready to lend any support we can. Our experienced scientists and professionals are ready to assist you with any technical support questions. Every question is considered a good question and we will work with you on a solution as fast as possible.

  • Call us: 8:30AM – 6:00PM EST 1-732-380-8900 and hit 0#

  • Fax to us: 1-910-769-9435

  • Email Technical Support

"Starter" columns for RP| non-polar analytes | For complex mixtures | Wide Pore Available

This phase is virtually indestructible due to the direct silicon-carbon bonds achieved when using our proprietary silica and bonding technologies. State of the art 4um or 2.2um high purity silica with a straight chain C8 hydrocarbon is bonded directly to the silica hydride surface with TWO (2) separate points of attachment for long column lifetimes even when using harsh HPLC conditions.

Moderately hydrophobic but more than all other C8 columns, this column makes this a good choice to start with when scouting for compounds of unknown polarity. Useful in Normal Phase (NP), Reversed Phase (RP) and Aqueous Normal Phase (ANP). Also there is no need for end-capping due the nature of the silica hydride surface that has virtually no silanols.

Also made with TYPE-C™ silica, the Cogent C8 300™ has a C8 chain bonded directly to our 5um, 300A, TYPE-C™ silica with a silicon-carbon bond. Since there are direct bonds attaching the ligand, it does not hydrolyze in acidic conditions like standard columns. Extremely low pH is possible with this wide pore column.

  • Click HERE to view specifications.

  • Click HERE for more information about TYPE-C columns.

  • Click HERE for "How to use these columns."

NOTE: Our technical support team strongly recommends that the Cogent column filter, included with each column, be used with all HPLC columns whenever possible. Click HERE for the details of this inline filter.

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