Catalog Number - 68040-PG2

Cogent NP Amino Guard Column Cartridges are packed with the same propyl amino bonded stationary phase used in Cogent NP Amino analytical columns. Manufactured on high-purity silica with an amino-functionalized propyl ligand, these cartridges provide effective protection against particulates, strongly retained contaminants, and sample matrix components that can foul the analytical column and degrade chromatographic performance. The amino chemistry is suitable for both Normal Phase and HILIC applications while providing USP L8 selectivity.

68040-PG2 is a guard column cartridge packed with 10 µm NP Amino 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 contaminants before they reach the analytical bed, helping maintain column efficiency, improve reproducibility, and extend analytical column life.

These guard cartridges are designed for use with 3.0 mm, 4.0 mm, and 4.6 mm ID Cogent NP Amino analytical columns. They are housed in stainless steel tubes with stainless steel frits pressed into durable PEEK frit caps for reliable performance in routine laboratory applications.

Key Benefits

• NP Amino stationary phase

• USP L8 equivalent chemistry

• Propyl amino bonded phase

• High-purity silica support

• Suitable for Normal Phase chromatography

• Suitable for HILIC applications

• Protects analytical columns from particulates and contaminants

• Helps maintain column efficiency and reproducibility

• Extends analytical column lifetime

• Stainless steel cartridge construction

Typical Applications

• USP L8 methods

• HILIC separations

• Normal Phase chromatography

• Sugar analysis

• Carbohydrate analysis

• Organic acid analysis

• Carboxylic acid analysis

• Food and beverage testing

• Pharmaceutical analysis

• Analytical column protection

Specifications

• Product Type: Guard Column Cartridges

• Stationary Phase: NP Amino

• USP Classification: L8

• Chromatography Mode: Normal Phase / HILIC

• Bonded Phase: Propyl Amino

• Endcapping: Not 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 column cartridges.

• View the Cogent Guard Column Holder (83000-GH)

Important Notes

• Suitable for both Normal Phase and HILIC chromatographic modes

• Designed for use with 3.0 mm, 4.0 mm, and 4.6 mm ID NP Amino analytical columns

• Helps protect analytical columns from contamination and premature fouling

• Matching stationary phase chemistry helps maintain chromatographic selectivity

• Replace as needed based on sample cleanliness and operating conditions

  ---