Guard Column cartridges, Diol, replacement, 2.0 mm ID x 10 mm long cartridges packed with 4 um, 100 A phase. Cogent TYPE-C Brand. 5/PK.
Additional Info:
The 40060‑PG2 Diol Guard Column Replacement Cartridges are designed to protect analytical HPLC columns from particulates, strongly retained contaminants, and irreversible matrix components that can degrade column performance and shorten column life. These guard cartridges serve as a sacrificial protection layer, preserving analytical column efficiency, selectivity, and peak shape.
Each cartridge is packed with 4 µm, 100 Å Diol stationary phase and is intended for use with Cogent TYPE‑C™ guard cartridge holders (sold separately).
Guard Column Use Case: Diol Protection for Analytical Methods
When using Diol chemistry—particularly in HILIC, normal‑phase, or mixed‑mode methods—guard columns are strongly recommended. These replacement cartridges help:
Protect analytical columns from particulate contamination
Trap strongly retained or irreversible sample components
Extend analytical column lifetime
Maintain consistent retention and selectivity
Routine replacement of guard cartridges helps minimize downtime and prevent premature failure of analytical columns.
Cartridge Construction & Packaging
These Diol guard cartridges are:
2.0 mm ID × 10 mm length
Packed in stainless‑steel tubes with stainless‑steel frits
Individually labeled for easy identification
Each cartridge is shipped in an individual black Delrin case to protect against drying, contamination, and physical damage prior to installation.
Compatibility & Recommended Use
Designed for use with 2.1 mm ID analytical HPLC columns
Compatible with Cogent TYPE‑C™ guard cartridge holders
Intended for HILIC, NP, and RP methods using Diol chemistry
These cartridges are sold as replacements for laboratories already using TYPE‑C guard column holders.
guard column holder sold separately.