HPLC Column, IEX WAX, 10um, 4.0mm ID x 150mm Length, 100A. Cogent Brand. 1 EA. Special Order Item.
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.
67090-15P-4 is a 150 mm x 4.0 mm ID analytical column packed with 10 µm WAX particles with a 100 Å pore size. The 150 mm length provides increased resolving power for more demanding ion exchange separations while maintaining the low backpressure advantages associated with 10 µm particles. This configuration is well suited for complex samples requiring greater retention and improved separation of closely related anionic species. The 4.0 mm ID format is commonly selected for legacy methods and typically operates at approximately 0.8–2.5 mL/min on conventional HPLC systems.
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, making it ideal for both analytical and purification workflows. This product is supplied as a Special Order Item manufactured specifically upon receipt of order.
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
Increased resolution from 150 mm column length
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: 4.0 mm ID x 150 mm
Length: 150 mm
Recommended Flow Rate: 0.8–2.5 mL/min
Brand: Cogent
Special Order Item Information
This item is a Special Order Item manufactured specifically to customer requirements.
Special Order Items cannot be canceled or returned once an order has been placed.
Manufactured upon receipt of order.
May have extended lead times compared to stocked products.
Important Notes
Designed for ion exchange chromatography
Retains negatively charged analytes
Retention can be adjusted through mobile phase pH control
Increased resolving power for complex separations
Lower backpressure compared to smaller particle columns
Supports higher flow rates for routine methods
Excellent alternative for many USP L9 methods
Special Order Item