Guard Column Cartridges, RP Phenyl Hexyl, 10um, 100A. 4.0mm ID x 10mm Length. Cogent Brand. 5/PK.
Additional Information:
Cogent RP Phenyl Hexyl Guard Column Cartridges are packed with the same phenyl hexyl (C6-Phenyl) bonded stationary phase used in Cogent RP Phenyl Hexyl analytical columns. Manufactured on high-purity silica with exhaustive double endcapping, these cartridges provide the same enhanced π-π interaction selectivity and aromatic compound retention characteristics as the analytical column while protecting it from contamination and premature fouling. The extended six-carbon linker positions the phenyl group farther from the silica surface, helping minimize silanol interactions and providing the unique selectivity associated with phenyl hexyl chemistry.
68039-PG2 is a guard column cartridge packed with 10 µm RP Phenyl Hexyl particles featuring a 100 Å pore size in a 4.0 mm ID x 10 mm format. Installed ahead of the analytical column, it captures particulates, strongly retained contaminants, and sample matrix components before they reach the primary analytical bed. This protection helps maintain chromatographic performance, improve reproducibility, and extend analytical column lifetime.
These guard cartridges are designed for use with 3.0 mm, 4.0 mm, and 4.6 mm ID Cogent RP Phenyl Hexyl analytical columns. Each cartridge is housed in a stainless steel tube with stainless steel frits pressed into durable PEEK frit caps for reliable operation in routine laboratory workflows. Performance is comparable to guard cartridges used with Restek® Phenyl Hexyl HPLC columns.
Key Benefits
RP Phenyl Hexyl stationary phase
C6-Phenyl bonded chemistry
Fully double endcapped
Enhanced π-π interaction selectivity
High-purity silica support
Protects analytical columns from particulates and contaminants
Maintains chromatographic performance
Extends analytical column service life
Stainless steel cartridge construction
Comparable performance to Restek® Phenyl Hexyl columns
Typical Applications
Aromatic compound analysis
Positional isomer separations
Active pharmaceutical ingredient (API) analysis
Flavonoid analysis
Tocopherol analysis
Polynuclear aromatic compound separations
Nitro-aromatic compound analysis
Natural product analysis
Method development
Column protection
Specifications
Product Type: Guard Column Cartridges
Stationary Phase: RP Phenyl Hexyl
Chromatography Mode: Reversed Phase
Bonded Phase: Phenyl Hexyl (C6-Phenyl)
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
End Caps: PEEK
Quantity: 5/PK
Brand: Cogent
Guard Column Holder Requirement
A Cogent Guard Column Holder is required for use with these guard cartridges.
Additional Resources
Important Notes
Designed for use with 3.0 mm, 4.0 mm, and 4.6 mm ID RP Phenyl Hexyl analytical columns
Extended C6 linker provides distinct selectivity compared to traditional phenyl phases
Matching stationary phase chemistry helps maintain chromatographic selectivity
Methanol is often preferred over acetonitrile to maximize π-π interactions
Replace as needed based on sample cleanliness and operating conditions