Catalog Number - 68004-PG2

Cogent RP C4 Butyl Guard Column Cartridges are packed with the same high-quality stationary phase used in Cogent RP C4 analytical columns, featuring traditional butyl (C4) ligand bonding on high-purity silica with complete double endcapping. These guard cartridges are designed to capture particulates, strongly retained contaminants, and sample matrix components before they reach the analytical column, helping maintain chromatographic performance and extend column life.

68004-PG2 is a guard column cartridge set packed with 10 µm RP C4 Butyl material with a 100 Å pore size in 4.0 mm ID x 10 mm length stainless steel cartridges. Designed for use with 3.0 mm, 4.0 mm, and 4.6 mm ID analytical HPLC columns, these cartridges provide a cost-effective way to protect valuable analytical columns from contamination and premature fouling. Regular guard cartridge replacement can help reduce downtime, improve reproducibility, and lower overall column operating costs.

The RP C4 stationary phase is well suited for protecting analytical columns used in reversed-phase separations of hydrophobic and neutral compounds. Stainless steel cartridge construction with stainless steel frits and PEEK frit caps provides durability and reliable performance for routine analytical HPLC applications.

Key Benefits

• Packed with Cogent RP C4 Butyl stationary phase

• Fully double endcapped chemistry

• High-purity silica support

• Designed for use with analytical HPLC columns

• Helps maintain column performance and reproducibility

• Cost-effective column protection

• Stainless steel cartridge construction

• Stainless steel frits with PEEK frit caps

• Supplied as a convenient 5-pack

Typical Applications

• Reversed-phase HPLC

• Analytical HPLC methods

• Hydrophobic compound analysis

• Neutral compound analysis

• Pharmaceutical analysis

• Quality control testing

• Method development

• Routine laboratory testing

• Column protection for analytical workflows

Specifications

• Product Type: Guard Column Cartridge

• Stationary Phase: RP C4 Butyl

• Chromatography Mode: Reversed Phase

• Bonded Phase: Butyl (C4)

• Endcapping: Fully Double Endcapped

• Particle Size: 10 µm

• Pore Size: 100 Å

• Cartridge Dimensions: 4.0 mm ID x 10 mm

• Hardware Material: Stainless Steel

• Frit Material: Stainless Steel

• Frit Cap Material: PEEK

• Quantity: 5/PK

• Brand: Cogent

Guard Column Holder Requirement

• A Cogent Guard Column Holder is required for use with these guard cartridges.

• View the Cogent Guard Column Holder 83000-GH

Important Notes

• Compatible with 3.0 mm, 4.0 mm, and 4.6 mm ID analytical HPLC columns

• Designed to intercept particulates and contaminants before they reach the analytical column

• Replace as needed based on sample cleanliness and application requirements

• Recommended for routine use to help maximize analytical column service life