HPLC Column, IEX WAX, 5um, 2.1mm ID x 50mm 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 effective pH range, delivering reliable anion exchange selectivity for acidic compounds and other negatively charged analytes. This chemistry is widely used in ion exchange chromatography and serves as an excellent alternative for many USP L9 methods requiring reproducible anion separations.
67590-05P-2 is a 50 mm x 2.1 mm ID analytical HPLC column packed with 5 µm WAX particles with a 100 Å pore size. The compact 50 mm length is ideal for rapid analyses, high-throughput workflows, and fast method development applications. The 2.1 mm ID format is particularly well suited 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 providing reliable low-flow performance to ensure accurate and reproducible results.
This weak anion exchange column is well suited 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 dependable chromatographic performance for demanding ion exchange applications while reducing solvent usage compared to larger internal diameter columns.
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
Fast analysis capability with 50 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
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 50 mm
Length: 50 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
Short column length supports rapid analyses and method development
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