HPLC Column, IEX SAX, 5um, 4.0mm ID x 50mm Length, 100A. Cogent Brand. 1 EA. Special Order Item.
Additional Information:
Cogent IEX SAX is a strong anion exchange (SAX) HPLC stationary phase manufactured using high-purity silica and quaternary amine functional groups that maintain a permanent positive charge across a wide pH range. This strong anion exchange mechanism provides reliable retention and separation of negatively charged analytes, making the column suitable for ion exchange chromatography methods involving inorganic anions, organic acids, biomolecules, and other ionic compounds. The stationary phase is an excellent alternative for USP L9 methods and applications requiring robust anion exchange selectivity.
67585-05P-4 is a 50 mm x 4.0 mm ID analytical column packed with 5 µm SAX particles with a 100 Å pore size. The short 50 mm length is optimized for fast ion exchange separations and rapid equilibration, while the 5 µm particle size provides improved chromatographic efficiency and higher plate counts than larger particle packings. The 4.0 mm ID format is commonly selected for legacy methods and typically operates at approximately 0.8–1.5 mL/min, providing an excellent balance of efficiency, resolution, and system compatibility for conventional HPLC instrumentation.
This USP L9 column is particularly useful for the separation and purification of negatively charged compounds, including organic acids, inorganic anions, nucleotides, and other ionic species. The combination of strong anion exchange functionality, high efficiency, and excellent reproducibility makes it ideal for routine analytical testing, method development, quality control laboratories, and demanding ion exchange applications requiring enhanced chromatographic performance. This product is supplied as a Special Order Item manufactured specifically upon receipt of order.
Key Benefits
Strong anion exchange (SAX) stationary phase
Quaternary amine functional groups
Permanent positive surface charge
Suitable alternative for USP L9 methods
5 µm particles for improved efficiency and resolution
High chromatographic performance
Fast analysis with 50 mm column length
High-purity silica support
Typical Applications
USP L9 methods
Ion exchange chromatography
Organic acid analysis
Inorganic anion separations
Biomolecule analysis
Method development
Purification studies
Quality control testing
Specifications
Product Type: HPLC Column
Stationary Phase: IEX SAX
USP Classification: L9
Chromatography Mode: Strong Anion Exchange
Functional Group: Quaternary Amine
Particle Size: 5 µm
Pore Size: 100 Å
Column Dimensions: 4.0 mm ID x 50 mm
Length: 50 mm
Recommended Flow Rate: 0.8–1.5 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
Quaternary amine groups remain charged across a broad pH range
Short column length provides rapid analyses
Higher efficiency than comparable 10 µm ion exchange columns
Compatible with conventional HPLC systems
Excellent alternative for many USP L9 methods
Special Order Item