HPLC Column, IEX WAX, 5um, 2.1mm ID x 100mm Length, 100A. Cogent Brand. 1 EA.
Additional Information:
Cogent IEX WAX is a weak anion exchange (WAX) HPLC stationary phase designed for the retention and separation of negatively charged compounds. Manufactured using high-purity silica and diethylaminopropyl functional groups, the stationary phase provides a positively charged surface within its functional pH range, delivering reliable anion exchange selectivity for acidic compounds and other anionic analytes. This chemistry is widely used for ion exchange chromatography applications and serves as an excellent alternative for many USP L9 methods.
67590-15P-2 is a 150 mm x 2.1 mm ID analytical HPLC column packed with 5 µm WAX particles with a 100 Å pore size. The 150 mm column length provides increased resolving power and peak capacity compared to shorter columns, making it well suited for impurity profiling, method optimization, and the separation of closely related compounds. The 2.1 mm ID format is ideal for LC-MS applications and reduced solvent consumption. Typical flow rates are approximately 0.2–0.3 mL/min; however, standard HPLC systems must be capable of reliable low-flow operation to ensure accurate and reproducible chromatographic performance.
This weak anion exchange column is particularly useful for the analysis and purification of organic acids, pharmaceuticals, biomolecules, and other negatively charged compounds. The combination of selective WAX functionality, high-purity silica, and efficient 5 µm particles provides excellent chromatographic performance for demanding ion exchange applications requiring enhanced resolution and LC-MS compatibility.
Key Benefits
Weak anion exchange (WAX) stationary phase
Diethylaminopropyl functional groups
Suitable for negatively charged analytes
Alternative for many USP L9 methods
High-purity silica support
5 µm particles for efficient separations
Enhanced resolution from 150 mm column length
Reduced solvent consumption with 2.1 mm ID format
Well suited for LC-MS applications
Typical Applications
Ion exchange chromatography
Anion separations
Acidic compound analysis
Organic acid analysis
Pharmaceutical analysis
USP L9 methods
LC-MS methods
Impurity profiling
Method development
Purification of negatively charged compounds
Specifications
Product Type: HPLC Column
Stationary Phase: IEX WAX
USP Classification: L9
Chromatography Mode: Weak Anion Exchange
Functional Group: Diethylaminopropyl
Particle Size: 5 µm
Pore Size: 100 Å
Column Dimensions: 2.1 mm ID x 150 mm
Length: 150 mm
Recommended Flow Rate: 0.2–0.3 mL/min
Brand: Cogent
Important Notes
Designed for weak anion exchange chromatography
Retains negatively charged analytes
Functional charged range approximately pH 5–8
Suitable for many USP L9 applications
High-purity silica provides reliable chromatographic performance
Longer column length improves separation of closely related compounds and impurities
Excellent choice for LC-MS workflows
Standard HPLC systems must be capable of reliable low-flow operation for use with 2.1 mm ID columns