Guard Column Cartridges, RP C8 Octyl, 5um, 100A. 2.1mm ID x 10mm Length. Cogent Brand. 5/PK.
Additional Information:
Cogent RP C8™ Guard Column Cartridges are designed to protect analytical HPLC columns from particulates, strongly retained compounds, and sample contaminants that can reduce column performance and shorten column life. Packed with the same RP C8™ 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-PG1 is a guard column cartridge packed with 5 µm RP C8™ particles featuring a 100 Å pore size in a 2.1 mm ID x 10 mm format. Designed specifically to protect 2.1 mm ID RP C8 analytical columns, these cartridges capture particulates and contaminants before they reach the analytical column bed. Constructed using stainless steel tubes with stainless steel frits pressed into durable PEEK frit caps, they provide reliable performance in demanding analytical 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 HPLC operation by protecting more expensive analytical columns. These cartridges are particularly valuable for complex samples, biological matrices, pharmaceutical analyses, and routine quality control workflows.
Key Benefits
RP C8™ stationary phase
Octyl (C8) bonded phase
Fully double end capped
Ultra-high purity silica support
100 Å pore size
Protects analytical HPLC columns
Extends column lifetime
Maintains chromatographic performance
Stainless steel and PEEK construction
Supplied in convenient 5-pack format
Typical Applications
Reversed-phase HPLC
LC-MS analysis
Pharmaceutical analysis
Quality control testing
Method development
Biological sample analysis
Environmental testing
Food and beverage analysis
Routine analytical separations
Column protection
Specifications
Product Type: Guard Column Cartridge
Stationary Phase: RP C8™
Chromatography Mode: Reversed Phase
Bonded Phase: Octyl (C8)
Endcapping: Fully Double End Capped
Particle Size: 5 µm
Pore Size: 100 Å
Cartridge Dimensions: 2.1 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 2.1 mm ID RP C8 analytical columns from particulates and contaminants
Helps extend analytical column service life and maintain chromatographic performance
Suitable for HPLC and LC-MS applications
Particularly useful with complex or highly contaminated sample matrices
Routine replacement helps reduce analytical column replacement costs
A Cogent Guard Column Holder (83200-GH) is required for use with these guard column cartridges
Compatible with Cogent 2.1 mm ID RP C8 analytical columns
Supplied as a package of five replacement cartridges