Amino HPLC Columns for Normal Phase, HILIC and USP L8 Applications
Cogent NP™ Amino HPLC Columns are designed for the separation of sugars, carbohydrates, carboxylic acids, and other polar compounds using Normal Phase and HILIC chromatography. Manufactured with high-purity silica and proven bonding technology, these columns provide reliable performance, excellent reproducibility, and the unique selectivity required for challenging polar analytes.
Cogent NP™ Amino columns are also suitable for laboratories using USP L8 methods and other established amino stationary phase applications where method consistency and reproducible retention are important.
Applications for Cogent NP™ Amino Columns
Cogent NP™ Amino columns are commonly used for:
Sugar and carbohydrate analysis
Organic and carboxylic acid separations
Food and beverage testing
Pharmaceutical analysis
USP L8 chromatography methods
Normal phase chromatography
HILIC method development
Polar compound separations
Unique Amino Stationary Phase Selectivity
The amino-propyl bonded phase creates a polar stationary phase capable of retaining compounds through multiple interaction mechanisms. The amino functionality contributes polarity and can influence retention based on:
Analyte polarity
Molecular size
Hydrogen bonding interactions
Access to the bonded amino ligand
Hydrophilic interactions
This combination of retention mechanisms provides selectivity that is often difficult to achieve using conventional reversed-phase columns.
Normal Phase and HILIC Versatility
Amino stationary phases are traditionally used in Normal Phase HPLC, where they are highly effective for sugars and other polar compounds. However, Cogent NP™ Amino columns can also be used in HILIC mode when greater retention of highly polar analytes is required.
This versatility allows analysts to optimize separations without changing stationary phase chemistry.
Available Configurations
Additional column configurations may be available including:
Analytical columns
Guard columns
Preparative columns
Process chromatography columns
For additional dimensions and custom configurations, contact MICROSOLV Customer Service.
Recommended Column Protection
For maximum column life and optimal chromatographic performance, MICROSOLV recommends using a Cogent HPLC Column Filter whenever possible. Column filters help reduce contamination from particulates and strongly retained materials, helping preserve column efficiency and reproducibility.
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