Catalog Number - 68524-P21-PG1

Cogent RP Phenyl™ Preparative Guard Column Cartridges are designed to protect preparative HPLC columns from particulate contamination and strongly retained compounds that can reduce column performance and shorten column life. Packed with the same stationary phase as the analytical or preparative column, these guard cartridges help maintain chromatographic performance while reducing replacement costs for larger preparative columns.

Catalog Number 68524-P21-PG1 is packed with 5 µm RP Phenyl™ stationary phase featuring a 100Å pore size. This fully double end-capped phase is manufactured using a traditional three-carbon linker with a terminal Phenyl group bonded to ultra-high purity silica. The cartridge is packed in a stainless steel tube with stainless steel frits and is designed to protect RP Phenyl™ preparative columns from contaminants and particulates that may adsorb onto the analytical bed.

The 21.2 mm ID x 10 mm format is specifically designed for use with 21.2 mm ID preparative RP Phenyl™ columns. Routine replacement of the guard cartridge helps maintain column efficiency, reduce downtime, and extend the service life of preparative HPLC columns operating at preparative flow rates.

Key Benefits

• RP Phenyl™ stationary phase

• USP L11 equivalent chemistry

• Ultra-high purity silica support

• Fully double end-capped

• Phenyl bonded phase

• 100Å pore size

• Suitable for reversed-phase chromatography

• Protects preparative columns from contamination

• Extends column lifetime

• Stainless steel cartridge construction with stainless steel frits

Typical Applications

• Preparative HPLC

• Preparative column protection

• Positional isomer separations

• Tocopherol purification

• Flavonoid purification

• Active pharmaceutical ingredient (API) purification

• Natural product isolation

• Fraction collection

• Process development

• Routine guard cartridge replacement

Specifications

• Product Type: Preparative Guard Column Cartridge

• Stationary Phase: RP Phenyl™

• Chromatography Mode: Reversed Phase

• USP Classification: L11

• Particle Size: 5 µm

• Pore Size: 100Å

• Cartridge Dimensions: 21.2 mm ID x 10 mm

• Construction: Stainless Steel Cartridge

• Frit Material: Stainless Steel

• Quantity: 1 Each

• Brand: Cogent

Guard Column Requirements

• Requires a Cogent 21.2 mm ID Preparative Guard Column Holder (Catalog No. 83000-P21-GH).

• Designed for use with compatible Cogent RP Phenyl™ 21.2 mm ID preparative HPLC columns.

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

• Suitable for reversed-phase chromatography

• USP L11 equivalent chemistry

• Fully double end-capped stationary phase

• Designed to protect RP Phenyl™ preparative columns from particulates and strongly retained contaminants

• Helps extend preparative column lifetime and maintain chromatographic performance

• Designed specifically for 21.2 mm ID preparative columns

• Requires a compatible Cogent Guard Column Holder

• Intended for routine replacement as part of preventive maintenance

• This is a Special Order Item

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