Catalog Number - 83000-P30-GH

The 83000‑P30‑GH Cogent™ Preparative Guard Column Holder is a heavy‑duty guard column housing designed to protect 30 mm internal‑diameter preparative columns from fouling, particulate contamination, and strongly adsorbing impurities. This holder is engineered specifically for Cogent RP, Cogent NP, and Cogent IEX preparative guard cartridges, which are sold separately.

Fabricated with a stainless steel body and stainless steel frits, the holder provides the mechanical strength and chemical resistance required for large‑diameter columns, high sample loads, and elevated preparative flow rates. Guard cartridges installed in this holder intercept undissolved particles and matrix contaminants before they enter the preparative column, helping preserve separation efficiency and column lifespan.

At this scale, correct hardware is essential. Analytical or semi‑prep guard holders cannot reliably accommodate 30 mm ID cartridges. The 83000‑P30‑GH ensures proper alignment, secure sealing, and minimal disruption to flow at preparative scale.

Why a 30 mm Prep Guard Holder Is Critical

Large‑diameter preparative columns represent a substantial investment and are routinely exposed to high sample mass and particulate burden. Using a guard holder specifically designed for 30 mm ID prep columns:

• Protects valuable preparative columns from irreversible fouling

• Reduces downtime caused by column contamination or replacement

• Preserves resolution and reproducibility across repeated injections

• Improves robustness in purification and scale‑up workflows

The 83000‑P30‑GH is purpose‑built for these demands and should be considered required hardware when operating Cogent 30 mm prep columns.

Key Features

Preparative Guard Cartridge Compatibility

• Accepts 30 mm ID × 10 mm long Cogent™ prep guard cartridges

• Compatible with multiple stationary phases:

  • Cogent RP (reversed‑phase)

  • Cogent NP (normal‑phase)

  • Cogent IEX (ion‑exchange)

Stainless Steel Construction

• Stainless steel body and frits

• Designed for preparative‑scale flow rates and workloads

• High mechanical durability and solvent resistance

Column Protection at Prep Scale

• Traps particulates and strongly retained impurities upstream

• Prevents fouling of expensive preparative column beds

• Extends column lifetime and performance

Dedicated Large‑ID Design

• Engineered specifically for 30 mm preparative chromatography

• Ensures proper cartridge seating and flow alignment

• Minimizes dead volume at large scale

Typical Applications

• Preparative HPLC and purification workflows

• Large‑scale RP, NP, and IEX separations

• High sample‑load chromatography

• Column life‑extension for 30 mm prep columns

• Development and production‑scale laboratories