Guard Column cartridge, Diol, replacement, 4.0 mm ID x 10 mm long cartridge packed with 4 um, 100 A phase. Cogent TYPE-C Brand. 1 EA.
Additional Info:
The 40060‑PG6 Diol Guard Column Replacement Cartridge is designed to protect analytical HPLC columns from particulates, strongly retained contaminants, and irreversible matrix components that can adsorb to the analytical column and degrade performance. This guard cartridge functions as a sacrificial protection layer, helping extend analytical column lifetime while preserving retention, selectivity, and peak shape.
The cartridge is packed with 4 µm, 100 Å Diol stationary phase and is intended for use with a Cogent TYPE‑C™ guard column holder (sold separately).
Guard Column Use Case: Single‑Cartridge Flexibility for Larger‑ID Columns
Guard columns are strongly recommended when operating HILIC, normal‑phase, or mixed‑mode Diol methods, particularly with complex or particulate‑laden samples. The single‑cartridge format is preferred when:
Different guard‑column phases are paired with different analytical phases
Method development requires frequent cartridge changes
Laboratories want flexibility without purchasing multi‑packs
This makes the PG6 cartridge ideal for specialized analytical workflows using larger‑diameter columns.
Cartridge Construction & Packaging
This Diol guard cartridge features:
4.0 mm ID × 10 mm length
Stainless‑steel tube with stainless‑steel frits
Clear labeling for reliable phase identification
Each cartridge is shipped in an individual black Delrin case to protect against drying, contamination, and physical damage prior to use.
Compatibility & Recommended Use
Designed for use with 3.0 mm, 4.0 mm, and 4.6 mm ID analytical HPLC columns
Compatible with Cogent TYPE‑C™ guard cartridge holders
Suitable for HILIC, NP, and RP methods using Diol chemistry
This cartridge is sold individually for laboratories requiring phase‑specific guard control in larger‑ID analytical workflows.
Operational Notes
Guard cartridges can be replaced without removing the analytical column
Replacement frequency depends on sample cleanliness and matrix complexity
Strongly recommended for LC‑MS, biological, and complex sample applications