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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-HG1
Cogent Replacement Guard Columns Kit with UDA (wcx) 100A 4um. Includes 5 each Hichrom 2.0mm x 10mm Guard Columns in individual cases. 689.284Order
40031-HG2
Cogent Replacement Guard Columns Kit with UDA (wcx) 100A 4um. Includes 5 each Hichrom 4.0mm x 10mm Guard Columns in individual cases. 689.284Order
40031-HG3
Cogent Guard Column Kit with UDA (wcx) 4um. Includes one Universal Holder and 5 each Hichrom 4.0mm x 10mm Guard Columns. 932.57Order
40031-HG4
Cogent Guard Column Kit with UDA (wcx) 100A 4um. Includes one Universal Holder and 5 each Hichrom 2.0mm x 10mm Guard Columns. 932.57Order
40031-HG5
Cogent Guard Column UDA (wcx) 100A 4um. Holder required. 2.0mm x 10mm Guard Column. 1 each 172.701Order
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