Guard Column Holder, Accepts 2.1-4.0 mm ID, 10 mm long Cogent brand guard cartridges. Cogent Brand. 1 EA.
Additional Info:
The 83000‑GH Cogent™ Guard Column Holder is a critical hardware component required to properly install and use Cogent™ guard column cartridges in analytical HPLC workflows. This holder provides a secure, precisely aligned housing for 10 mm Cogent guard cartridges, ensuring reliable column protection without introducing dead volume or misalignment.
Designed to accept guard cartridges from 2.1 mm to 4.0 mm internal diameter, this single holder supports multiple method configurations and flow rates. It is compatible with Cogent RP, Cogent NP, and Cogent IEX guard cartridges, making it a universal solution across reversed‑phase, normal‑phase, and ion‑exchange chromatography.
Proper use of a dedicated guard column holder is essential for maintaining chromatographic integrity. Without the correct holder, guard cartridges cannot seal or align correctly, increasing the risk of leaks, void volume, and premature analytical column damage.
Why This Holder Is Essential for Guard Columns
Guard cartridges are engineered to trap particulates and strongly retained contaminants before they reach the analytical column. However, their effectiveness depends entirely on correct mechanical integration. The 83000‑GH holder:
Ensures coaxial alignment between guard and analytical columns
Maintains consistent internal geometry to avoid band broadening
Allows safe, repeatable cartridge replacement without disturbing the column
For laboratories using multiple stationary phases, this holder eliminates the need for phase‑specific hardware while preserving method performance.
Key Features
Universal Guard Cartridge Compatibility
Accepts 2.1, 3.0, and 4.0 mm ID guard cartridges
Designed specifically for 10 mm long Cogent™ guard cartridges
One holder supports multiple methods and phases
Multi‑Phase Support
See the respective stationary phase pages for cartridge selection guidance.
Precision Mechanical Design
Proper sealing and alignment of guard cartridges
Minimizes extra‑column volume
Preserves resolution and reproducibility
Operational Efficiency
Enables fast, tool‑minimal guard cartridge replacement
Reduces analytical column downtime
Helps extend analytical column lifetime
Typical Applications
Routine analytical HPLC
Method development and validation
Multi‑phase chromatography platforms
Column life‑extension programs
QC and high‑throughput laboratories