Catalog Number - 68540-P21-PG1

Cogent NP Amino™ Preparative Guard Column Cartridges are designed to protect valuable preparative HPLC columns from particulate contamination and strongly retained compounds that can reduce column performance and shorten column lifetime. Manufactured using the same NP Amino™ stationary phase chemistry as the analytical column, these guard cartridges help maintain chromatographic performance while reducing replacement costs associated with preparative columns.

68540-P21-PG1 is packed with 5 µm NP Amino™ particles in a 21.2 mm ID x 10 mm guard cartridge format with a 100Å pore size. Manufactured using a three-carbon propyl ligand with a terminal amino functional group bonded to high-purity silica, this stationary phase is not end capped and provides the same selectivity characteristics as the corresponding NP Amino™ preparative columns. The stainless steel cartridge construction includes stainless steel frits for durability and reliable performance in preparative applications.

This guard cartridge is intended for use with 21.2 mm ID Cogent NP Amino™ preparative columns used in Normal Phase and HILIC chromatography. It is particularly useful for protecting columns used for purification of sugars, compounds containing carboxylic acid functionalities, and other polar analytes. Regular replacement of the guard cartridge can help extend preparative column life and maintain chromatographic efficiency.

Key Benefits

• NP Amino™ stationary phase

• Propyl amino bonded silica

• Not end capped

• 100Å pore size

• 5 µm particle size

• Protects preparative columns from contamination

• Extends preparative column life

• Stainless steel cartridge construction

• Stainless steel frits

• Matched chemistry to NP Amino™ preparative columns

Typical Applications

• Preparative HPLC

• Guard column protection

• Sugar purification workflows

• Carbohydrate analysis and purification

• Organic acid purification

• HILIC chromatography

• Normal Phase chromatography

• Preparative method development

• Column life extension

• Sample cleanup applications

Specifications

• Product Type: Preparative Guard Column Cartridge

• Stationary Phase: NP Amino™

• Chromatography Mode: Normal Phase / HILIC

• Particle Size: 5 µm

• Pore Size: 100Å

• Cartridge Dimensions: 21.2 mm ID x 10 mm

• Hardware Material: Stainless Steel

• Frit Material: Stainless Steel

• Compatible Column Size: 21.2 mm ID Preparative Columns

• Brand: Cogent

Required Guard Column Holder

• Requires the Cogent 21.2 mm ID Preparative Guard Column Holder (Catalog Number 83000-P21-GH) for installation and use.

• See the Cogent 21.2 mm ID Preparative Guard Column Holder product page for complete compatibility and ordering information.

Special Order Item Information

• Please review the Special Order Item Information for complete details.

• For pricing confirmation, availability, lead times, or application assistance, please contact MICROSOLV Customer Service.

Important Notes

• Designed to protect 21.2 mm ID NP Amino™ preparative columns

• Suitable for Normal Phase chromatography

• Suitable for HILIC applications

• Ideal for sugars and other polar compounds

• Propyl amino bonded stationary phase

• Helps prevent contamination of preparative columns

• Extends column service life and reduces operating costs

• Requires a 21.2 mm ID preparative guard column holder

• Intended for preparative purification workflows

• This is a Special Order Item