Guard Column Cartridges, RP C8 Octyl, 3um, 100A. 4.0mm ID x 10mm Length. Cogent Brand. 5/PK.
Additional Information:
Cogent RP C8 Octyl™ Guard Column Cartridges are designed to protect valuable analytical columns from particulate matter, strongly retained contaminants, and sample matrix components that can reduce column performance and shorten column lifetime. Packed with the same high-purity RP C8 Octyl™ stationary phase used in Cogent analytical columns, these guard cartridges help maintain method consistency while extending analytical column service life. The stationary phase is fully double end capped and bonded with a traditional octyl (C8) ligand on ultra-high purity silica.
68308-PG2 contains five guard column cartridges packed with 3 µm RP C8 Octyl™ particles and 100 Å pores 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 analytical columns, these cartridges capture contaminants before they reach the analytical column bed, reducing performance loss and minimizing replacement costs. The cartridges are constructed using stainless steel tubes and frits with PEEK frit caps for durability and reliable chromatographic performance.
These guard cartridges are particularly useful for hydrophobic and neutral compounds analyzed by reversed-phase HPLC. Routine replacement of guard cartridges can significantly extend analytical column lifetime while helping maintain consistent retention, peak shape, efficiency, and resolution.
Key Benefits
RP C8 Octyl™ stationary phase
Fully double end capped
Traditional octyl (C8) bonded phase
Ultra-high purity silica support
Protects analytical columns from contamination
Helps extend 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
Reversed-phase HPLC
Long-chain fatty acid analysis
Pharmaceutical analysis
Hydrophobic compound analysis
Neutral compound analysis
Method development
Quality control testing
Sample matrix protection
Analytical column protection
Routine laboratory testing
Specifications
Product Type: Guard Column Cartridges
Stationary Phase: RP C8 Octyl™
Bonded Phase: Octyl (C8)
Endcapping: Fully Double 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
Brand: Cogent
Important Notes
Designed for protection of 3.0 mm, 4.0 mm, and 4.6 mm ID RP C8 analytical columns
Helps prevent contamination from particulates and strongly retained compounds
Maintains analytical column performance and longevity
Constructed with stainless steel hardware for durability
Compatible with reversed-phase HPLC methods