Guard Column Cartridges, NP Amino, 3um, 100A. 2.1mm ID x 10mm Length. Cogent Brand. 5/PK.
Additional Information:
Cogent NP Amino™ Guard Column Cartridges are designed to protect valuable analytical columns from particulates, contaminants, and strongly retained compounds that can reduce column performance and shorten column lifetime. Packed with the same NP Amino™ stationary phase used in Cogent analytical columns, these cartridges help maintain method consistency while extending analytical column service life. The stationary phase consists of a three-carbon propyl ligand with a terminal amino functional group bonded to ultra-high purity silica, providing the selectivity associated with USP L8 chemistry for Normal Phase and HILIC applications.
68340-PG1 contains five guard column cartridges packed with 3 µm NP Amino™ particles featuring a 100 Å pore size in a 2.1 mm ID x 10 mm format. Designed specifically to protect 2.1 mm ID NP Amino analytical columns, these guard cartridges capture particulates and contaminants before they reach the analytical column bed. The cartridges are constructed with stainless steel tubes, stainless steel frits, and durable PEEK frit caps to provide reliable chromatographic performance and long service life.
These guard cartridges are particularly useful for sugar analysis, carbohydrate separations, organic acid analysis, HILIC methods, Normal Phase chromatography, pharmaceutical testing, and routine analytical workflows. Regular replacement of guard cartridges can help preserve analytical column efficiency, retention reproducibility, peak shape, and resolution while reducing analytical column replacement costs.
Key Benefits
NP Amino™ stationary phase
USP L8 equivalent chemistry
Amino bonded phase
Ultra-high purity silica support
Protects analytical columns from particulates and contaminants
Helps extend analytical column lifetime
Maintains chromatographic performance
Suitable for Normal Phase chromatography
Suitable for HILIC applications
Convenient 5-pack configuration
Typical Applications
USP L8 methods
Sugar analysis
Carbohydrate analysis
Organic acid analysis
Polar compound analysis
HILIC methods
Normal Phase chromatography
Food and beverage analysis
Pharmaceutical analysis
Analytical column protection
Specifications
Product Type: Guard Column Cartridges
Stationary Phase: NP Amino™
USP Classification: L8
Bonded Phase: Amino
Endcapping: Not End Capped
Particle Size: 3 µm
Pore Size: 100 Å
Cartridge Dimensions: 2.1 mm ID x 10 mm
Compatible Column ID: 2.1 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 2.1 mm ID NP Amino analytical columns
Helps prevent contamination from particulates and strongly retained compounds
Maintains analytical column performance and longevity
Constructed with stainless steel hardware for durability
Suitable for Normal Phase and HILIC chromatography
As an unmodified silica bonded amino phase, this product supports HILIC applications