Guard Column Cartridges, RP C8 Octyl, Wide Pore, 5um, 300A. 4.0mm ID x 10mm Length. Cogent Brand. 5/PK.
Additional Information:
Cogent RP C8™ Wide Pore Guard Column Cartridges are designed to protect analytical HPLC columns from particulates, strongly retained compounds, proteins, peptides, and other sample contaminants that can reduce column performance and shorten column life. Packed with the same RP C8™ Wide Pore stationary phase used in Cogent analytical columns, these guard cartridges help maintain chromatographic consistency while extending the service life of your analytical column. The stationary phase consists of an octyl (C8) bonded ligand attached to ultra-high purity silica and is fully double end capped to provide reproducible reversed-phase performance.
68508-PG2-3 is a guard column cartridge packed with 5 µm RP C8™ Wide Pore particles featuring a 300 Å pore size in a 4.0 mm ID x 10 mm format. Designed to protect 3.0 mm, 4.0 mm, and 4.6 mm ID RP C8™ Wide Pore analytical columns, these cartridges capture particulates and contaminants before they reach the analytical column bed. The 300 Å pore structure provides enhanced accessibility for proteins, peptides, and other higher molecular weight compounds. Constructed using stainless steel tubes with stainless steel frits pressed into durable PEEK frit caps, they provide reliable performance in demanding HPLC and LC-MS applications.
Routine replacement of guard column cartridges helps maintain column efficiency, preserve peak shape, reduce downtime, and lower the overall cost of chromatography by protecting more expensive analytical columns. These cartridges are particularly beneficial for protein analysis, peptide analysis, biomolecule separations, pharmaceutical testing, and complex sample matrices.
Key Benefits
RP C8™ Wide Pore stationary phase
Octyl (C8) bonded phase
Fully double end capped
Ultra-high purity silica support
300 Å wide pore design
Protects analytical HPLC columns
Ideal for proteins and peptides
Extends column lifetime
Maintains chromatographic performance
Supplied in convenient 5-pack format
Typical Applications
Reversed-phase HPLC
LC-MS analysis
Protein analysis
Peptide analysis
Biomolecule separations
Pharmaceutical analysis
Biopharmaceutical testing
Method development
Quality control testing
Column protection
Specifications
Product Type: Guard Column Cartridge
Stationary Phase: RP C8™ Wide Pore
Chromatography Mode: Reversed Phase
Bonded Phase: Octyl (C8)
Endcapping: Fully Double End Capped
Particle Size: 5 µm
Pore Size: 300 Å
Cartridge Dimensions: 4.0 mm ID x 10 mm
Construction: Stainless Steel Tube, Stainless Steel Frits, PEEK Frit Caps
Quantity: 5/PK
Brand: Cogent
Important Notes
Designed to protect 3.0 mm, 4.0 mm, and 4.6 mm ID RP C8™ Wide Pore analytical columns from particulates and contaminants
300 Å pores provide enhanced accessibility for proteins, peptides, and biomolecules
Helps extend analytical column service life and maintain chromatographic performance
Suitable for HPLC and LC-MS applications
Particularly useful for protein, peptide, and biomolecule analyses
Routine replacement helps reduce analytical column replacement costs
A Cogent Guard Column Holder (83000-GH) is required for use with these guard column cartridges
Compatible with Cogent 3.0 mm, 4.0 mm, and 4.6 mm ID RP C8™ Wide Pore analytical columns
Supplied as a package of five replacement cartridges