HPLC Column, IEX WAX, 10um, 4.6mm ID x 100mm Length, 100A. Cogent Brand. 1 EA.
Additional Information:
Cogent IEX WAX is a weak anion exchange (WAX) HPLC stationary phase manufactured using high-purity silica and diethylaminopropyl functional groups that provide pH-dependent positive charge characteristics. This weak anion exchange mechanism offers selective retention and separation of negatively charged analytes while allowing greater control of retention through mobile phase pH adjustments. The stationary phase is particularly useful for organic acids, biomolecules, and other anionic compounds and serves as an excellent alternative for USP L9 methods requiring weak anion exchange selectivity.
67090-10P is a 100 mm x 4.6 mm ID analytical column packed with 10 µm WAX particles with a 100 Å pore size. The 100 mm length provides an excellent balance between chromatographic resolution and analysis time, while the larger 10 µm particle size delivers low backpressure and supports higher flow rates compared to smaller particle packings. Typical operating flow rates are approximately 1.0–3.0 mL/min, making this column well suited for conventional HPLC systems and routine ion exchange applications.
This USP L9 column is particularly useful for the separation and purification of negatively charged compounds, including organic acids, acidic pharmaceuticals, nucleotides, and other anionic species. The weak anion exchange functionality allows chromatographers to optimize selectivity through pH control while maintaining excellent efficiency and reproducibility.
Key Benefits
Weak anion exchange (WAX) stationary phase
Diethylaminopropyl functional groups
pH-dependent retention characteristics
Suitable alternative for USP L9 methods
10 µm particles for lower backpressure
Supports higher flow rates
Balanced resolution and analysis time
High-purity silica support
Typical Applications
USP L9 methods
Ion exchange chromatography
Organic acid analysis
Acidic pharmaceutical compounds
Biomolecule analysis
Method development
Purification studies
Quality control testing
Specifications
Product Type: HPLC Column
Stationary Phase: IEX WAX
USP Classification: L9
Chromatography Mode: Weak Anion Exchange
Functional Group: Diethylaminopropyl
Functional pH Range: Approximately pH 5–8
Particle Size: 10 µm
Pore Size: 100 Å
Column Dimensions: 4.6 mm ID x 100 mm
Length: 100 mm
Recommended Flow Rate: 1.0–3.0 mL/min
Brand: Cogent
Important Notes
Designed for ion exchange chromatography
Retains negatively charged analytes
Retention can be adjusted through mobile phase pH control
100 mm length balances resolution and run time
Lower backpressure compared to smaller particle columns
Supports higher flow rates for routine methods
Excellent alternative for many USP L9 methods
Particularly useful for acidic compounds and organic acids