Guard Column Cartridges, NP Silica, 3um, 100A. 4.0mm ID x 10mm Length. Cogent Brand. 5/PK.
Additional Information:
Cogent NP Silica™ Guard Column Cartridges are designed to protect analytical HPLC columns from particulate contamination, strongly retained compounds, and sample matrix components that can shorten column life and reduce chromatographic performance. Packed with ultra-high purity, low metal content 100Å NP Silica™ stationary phase that is not chemically modified, these guard cartridges provide matching selectivity to the analytical column while serving as a sacrificial protection device.
82361-PG2 Guard Column Cartridges are packed with 3 µm NP Silica™ media in a 4.0 mm ID x 10 mm format and are designed to protect 3.0 mm, 4.0 mm, and 4.6 mm ID NP Silica™ analytical columns. By trapping contaminants before they reach the analytical column, these guard cartridges help maintain column efficiency, improve reproducibility, and reduce the frequency of analytical column replacement.
NP Silica™ guard cartridges are commonly used with HILIC and Normal Phase chromatography methods involving hydrophilic and polar compounds. The matching stationary phase chemistry helps preserve chromatographic selectivity and method consistency while extending analytical column lifetime. For proper installation and operation, these cartridges must be used with a compatible Cogent Guard Column Holder.
Key Benefits
NP Silica™ stationary phase
USP L3 equivalent chemistry
Ultra-high purity silica
Low metal content silica
Unmodified silica surface
3 µm particle size
Protects analytical columns from contamination
Extends analytical column life
Maintains chromatographic performance
Compatible with 3.0 mm, 4.0 mm, and 4.6 mm ID columns
Typical Applications
HILIC chromatography
Normal Phase HPLC
USP L3 methods
Polar compound analysis
Hydrophilic compound analysis
Pharmaceutical analysis
Food and beverage testing
Environmental analysis
Method development
Column protection
Specifications
Product Type: Guard Column Cartridges
Stationary Phase: NP Silica™
USP Classification: L3
Particle Size: 3 µm
Pore Size: 100Å
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
Cartridge Housing: Stainless Steel
Frit Material: Stainless Steel Frits with PEEK Frit Caps
Brand: Cogent
Required Guard Column Holder
A Cogent Guard Column Holder (Catalog Number 83000-GH) is required for use with these guard column cartridges.
Important Notes
Designed for 3.0 mm, 4.0 mm, and 4.6 mm ID NP Silica™ analytical columns
Suitable for HILIC and Normal Phase chromatography
USP L3 equivalent chemistry
Unmodified silica stationary phase
Low metal content, high-purity silica
Protects analytical columns from particulates and strongly retained contaminants
Helps extend analytical column lifetime
Maintains method reproducibility and chromatographic performance
Must be used with a Cogent Guard Column Holder (83000-GH)
Supplied as a pack of 5 cartridges