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Cogent UDA™ HPLC Columns

ANP  |  Weak Cation  |  Mixed Mode

These useful 11 carbon and carboxylic acid HPLC columns have a silica hydride surface similar to other TYPE-C™ Silica phases but the uniqueness of Cogent UDA™ is that they can exhibit weak cation exchange properties in addition to RP & ANP retention; a mixed mode is possible with some mobile phases conditions.

A terminal carboxylic acid group contributes some additional selectivity in this column and when the mobile phase is above pH 5.9, the acid group becomes 90% negatively charged and at pH 6.9 is 99% charged and may act as a cation exchanger. Below pH 4.9, the group does not have significant ion exchange properties. It is recommended if you want to use cation exchange with this column, use a mobile phase around pH 6 or higher if possible.

Good choice for scientists working closely related compounds and with LCMS. Precise methods are easily developed even with complex sample matrices with very little desalting required.
 

 

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Catalog# Description PricingAdd!
40031-02K
HPLC Column, Cogent UDA™ (wcx), 100A TYPE-C silica 4um, 4.6mm x 20mm with PEEK-inert frits & hardware. 1 each. 864.44Order
40031-02K-2
HPLC Column, Cogent UDA™(wcx), 100A TYPE-C silica 4um, 2.1mm x 20mm with PEEK-inert frits & hardware. 1 each. 839.21Order
40031-02P
Cogent UDA (wcx) HPLC Column 100A 4um 4.6mm x 20mm. 1 each. 652.28Order
40031-02P-2
Cogent UDA (wcx) HPLC column 100A 4um 2.1mm x 20mm. 1 Each. 620.16Order
40031-03K
HPLC Column, Cogent UDA™ (wcx), 100A TYPE-C silica 4um, 4.6mm x 30mm with PEEK-inert frits & hardware. 1 each. 889.69Order
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