Prep Guard Column Cartridge, RP C18, 5um, 100A. 30mm ID x 10mm Length. Cogent Brand. 1 EA.
Additional Info:
The 68518‑P30‑PG1 Cogent RP C18 Prep Guard Column Cartridge is designed to protect high‑value preparative HPLC columns at production scale, extending column life while maintaining consistent chromatographic performance.
Packed with 5 µm Cogent RP C18™ stationary phase, and manufactured using high‑purity silica with traditional octadecylsilane (C18) bonding, this cartridge is fully double end‑capped to provide:
Reduced silanol interactions
Improved peak shape for polar and basic analytes
Reliable and reproducible chromatographic protection
Constructed in a stainless steel housing with stainless steel frits, this guard cartridge is engineered for durability in high‑flow, high‑load production environments.
Purpose of Guard Columns
Protect preparative columns from:
Particulate contamination
Strongly retained compounds
Sample matrix buildup and fouling
Extend column lifetime
Maintain consistent retention and peak shape
Reduce downtime and replacement costs
30 mm ID – Production‑Scale Compatibility
Designed for 30 mm ID preparative HPLC columns
Supports very high flow rates and large injection volumes
Ideal for pilot‑scale and full production purification workflows
⚠️ Requires a 30 mm ID prep guard column holder system
Why Choose RP C18 Guard Cartridges (5 µm, 30 mm Prep Scale)
Matched Stationary Phase Protection
Same C18 chemistry as the preparative column
Maintains method selectivity and integrity
Prevents changes in chromatographic behavior
High‑Load Protection
Designed for large‑scale injections and high sample loads
Protects columns in production‑level purification workflows
Method Compatibility
Suitable for USP L1 methods
Supports semi‑prep and prep‑scale chromatography workflow
Cogent RP C18™ Advantages
Fully End‑Capped Surface
Minimizes secondary interactions
Improves peak symmetry
Stabilizes chromatographic performance
High Purity Silica
Consistent cartridge‑to‑cartridge performance
Reliable protection across extended runs
Durable Construction
Stainless steel housing and frits
Designed for high‑flow production systems
Typical Applications
Production‑scale HPLC purification
Preparative column protection
High‑load separations
Pharmaceutical manufacturing and QC
Hydrophobic and neutral compound purification
USP L1 reversed‑phase methods
Important Usage Notes
Designed for preparative HPLC systems (30 mm ID)
Must be used with a compatible prep guard column holder
Replace regularly to maintain optimal column performance
Essential for protecting high‑value production columns
Made‑to‑Order & Pricing Information
This is a custom, made‑to‑order item.
Orders cannot be canceled once placed
Custom items are non‑returnable