Guard Column Cartridges, NP Silica, 5um, 100A. 2.1mm 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 and strongly retained compounds that can reduce column efficiency and shorten column lifetime. Packed with the same high-purity stationary phase as the analytical column, these guard cartridges help maintain chromatographic performance while reducing the cost of replacing analytical columns.
82561-PG1 Guard Column Cartridges are packed with 5 µm NP Silica™ stationary phase manufactured from ultra-high purity, low-metal-content 100 Å silica. This unmodified silica stationary phase provides the traditional selectivity associated with USP L3 classified materials, making these cartridges ideal for use with Cogent NP Silica™ analytical HPLC columns. Each cartridge is packed in a stainless steel tube with stainless steel frits secured within durable PEEK frit caps for reliable performance and long service life.
The 2.1 mm ID x 10 mm format is specifically designed to protect 2.1 mm ID analytical columns used in HILIC and normal-phase chromatography. Routine guard cartridge replacement helps maintain analytical column efficiency, minimize downtime, and extend column service life.
Key Benefits
NP Silica™ stationary phase
USP L3 equivalent chemistry
Ultra-high purity, low-metal-content silica
Unmodified silica surface
100 Å pore size
Suitable for HILIC applications
Suitable for normal-phase chromatography
Protects analytical columns from contamination
Extends analytical column lifetime
Stainless steel construction with PEEK frit caps
Typical Applications
HILIC chromatography
Normal-phase HPLC
Polar compound analysis
Hydrophilic compound analysis
Pharmaceutical analysis
Quality control testing
Method development
Analytical column protection
Routine maintenance programs
USP L3 method support
Specifications
Product Type: Guard Column Cartridge
Stationary Phase: NP Silica™
Chromatography Mode: HILIC / Normal Phase
USP Classification: L3
Particle Size: 5 µm
Pore Size: 100 Å
Cartridge Dimensions: 2.1 mm ID x 10 mm
Construction: Stainless Steel Cartridge
Frit Material: Stainless Steel
Frit Cap Material: PEEK
Quantity: 5 Pack
Brand: Cogent
Guard Column Requirements
Requires a Cogent Guard Column Holder (Catalog No. 83200-GH).
Designed for use with compatible Cogent NP Silica™ 2.1 mm ID analytical HPLC columns.
Important Notes
Suitable for HILIC applications
Suitable for normal-phase chromatography
Unmodified silica stationary phase
USP L3 equivalent chemistry
Protects analytical columns from particulates and strongly retained contaminants
Helps extend column lifetime and maintain performance
Designed specifically for 2.1 mm ID analytical columns
Requires a compatible Cogent Guard Column Holder
Intended for routine replacement as part of preventive maintenance
Package contains five guard column cartridges