Guard Column Cartridges, RP Cyano, 3um, 100A. 4.0mm ID x 10mm Length. Cogent Brand. 5/PK.
Additional Information:
Cogent RP Cyano™ Guard Column Cartridges are designed to protect valuable analytical columns from particulates, contaminants, and strongly retained compounds that can reduce column performance and shorten column lifetime. Packed with the same RP Cyano™ stationary phase used in Cogent analytical columns, these cartridges help maintain method consistency while extending analytical column service life. The stationary phase consists of a three-carbon ligand with a terminal cyano (CN) functional group bonded to ultra-high purity silica, providing the unique selectivity associated with USP L10 chemistry.
68334-PG2 contains five guard column cartridges packed with 3 µm RP Cyano™ particles featuring a 100 Å pore size in a 4.0 mm ID x 10 mm format. Designed specifically to protect 3.0 mm, 4.0 mm, and 4.6 mm ID RP Cyano analytical columns, these guard cartridges trap particulates and strongly adsorbed contaminants before they reach the analytical column bed. The cartridges are packed in reversed-phase solvents and constructed using stainless steel tubing, stainless steel frits, and durable PEEK frit caps for reliable performance.
These guard cartridges are ideal for pharmaceutical analysis, polar and neutral compound separations, routine quality control testing, and method development workflows. Regular replacement of guard cartridges can help preserve analytical column efficiency, retention reproducibility, peak shape, and resolution while reducing analytical column replacement costs.
Key Benefits
RP Cyano™ stationary phase
USP L10 equivalent chemistry
Cyano bonded phase
Ultra-high purity silica support
Protects analytical columns from particulates and contaminants
Helps extend analytical column lifetime
Maintains chromatographic performance
Stainless steel cartridge construction
Designed for 3.0 mm, 4.0 mm, and 4.6 mm ID analytical columns
Convenient 5-pack configuration
Typical Applications
USP L10 methods
Polar compound analysis
Neutral compound analysis
Pharmaceutical analysis
Method development
Quality control testing
Sample cleanup and protection
Analytical column protection
Routine HPLC analysis
Stability testing
Specifications
Product Type: Guard Column Cartridges
Stationary Phase: RP Cyano™
USP Classification: L10
Bonded Phase: Cyano (CN)
Endcapping: Not End Capped
Particle Size: 3 µm
Pore Size: 100 Å
Cartridge Dimensions: 4.0 mm ID x 10 mm
Compatible Column IDs: 3.0 mm, 4.0 mm, and 4.6 mm
Quantity: 5 Cartridges per Pack
Construction: Stainless Steel Tube with Stainless Steel Frits and PEEK Frit Caps
Packed In: Reversed-Phase Solvents
Brand: Cogent
Important Notes
Designed for protection of 3.0 mm, 4.0 mm, and 4.6 mm ID RP Cyano analytical columns
Helps prevent contamination from particulates and strongly retained compounds
Maintains analytical column performance and longevity
Constructed with stainless steel hardware for durability
Suitable for reversed-phase HPLC methods
Packed and shipped in reversed-phase solvents