Guard Column cartridge, Diol, replacement, 2.0 mm ID x 10 mm long cartridge packed with 4 um, 100 A phase. Cogent TYPE-C Brand. 1 EA.
Additional Info:
The 40060‑PG3 Diol Guard Column Replacement Cartridge is designed to protect analytical HPLC columns from particulates, irreversible contaminants, and matrix components that can adsorb onto the analytical column and degrade performance. This guard cartridge acts as a sacrificial protection layer, helping preserve column efficiency, 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
Guard columns are strongly recommended when running HILIC, normal‑phase, or mixed‑mode Diol methods, particularly with complex or biological samples. This single‑cartridge format is preferred when:
Different guard‑column phases are used with different analytical phases
Method development requires frequent phase changes
Users want to avoid purchasing multi‑packs
This flexibility makes the PG3 cartridge ideal for specialized or exploratory analytical workflows.
Cartridge Construction & Packaging
This Diol guard cartridge features:
2.0 mm ID × 10 mm length
Stainless‑steel tube with stainless‑steel frits
Clear labeling for phase 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 2.1 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.
Operational Notes
Guard cartridges are easily 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