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Retention Time Maps for Cogent Columns

Cogent™ HPLC Columns are very easy to use and make it easy to find a suitable separation method using the MicroSolv "Method Development Guides". Each stationary phase has a unique "Guide" that shows the separation of three classes of compounds (Acids, Neutrals and Bases) in standard test mixtures. Each analyte in a test mixture has a different Octanol-Water Partition Coefficient (log P) to show a range of compound retention times and how they will retain on the column; at three different pHs.

If you compare the compound classes (acid, neutral or base) and the relative log P of your compounds with one of the compounds found in a retention map, you will be able to predict the retention times of your samples on the same Cogent™ HPLC Column.

Sample Method Guide page Click on the following to view online

Cogent UDC™ Cholesterol
With patented Silica Hydrides, this extremely stable phase can perform normal and reverse phase separations without requiring dedication to a technique.

HPS™ C18
Base deactivated, fully endcapped, ultra low metals contents makes this one of the highest efficiency products available.


HPS™Cyano
Cyano is often the first choice of many experienced chromatographers for hard to separate compounds.

hQ™ C8
Similar to hQ™ C18, this product is even lower in hydrophobicity and offers much lower carbon loading then other products. Excellent for slightly polar acidic compounds.

 

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