Guard Column Starter Set, Bidentate C18 2.o, complete with 5 each 2.0 mm ID x 10 mm long cartridges packed with 2.2 um, 120 A phase and 1 each guard column holder. Cogent TYPE-C Brand. 1 EA.
Additional Info:
The 40218‑PG1 Cogent Bidentate C18™ 2.o Guard Column Starter Set provides everything required to implement high‑pressure guard protection for 2.1 mm ID Cogent TYPE‑C™ analytical HPLC columns using near‑UHPLC (2.o) chemistry. This starter kit is specifically intended for higher‑efficiency, smaller‑particle methods where guard robustness and pressure compatibility are critical.
The kit includes five 2.0 mm ID × 10 mm long guard cartridges packed with Cogent Bidentate C18™ 2.o stationary phase (2.2 µm, 120 Å), along with one stainless‑steel guard cartridge holder designed for high‑pressure operation. The phase‑matched guard chemistry preserves retention, selectivity, and efficiency when protecting Bidentate C18™ 2.o analytical columns.
Under typical laboratory use, the five cartridges included are often sufficient to provide long‑term protection for the full lifetime of an analytical column, making this starter kit both practical and cost‑effective. Each guard cartridge is shipped in an individual, closeable Delrin storage case to protect against drying, contamination, or handling damage.
Why Use a Bidentate C18™ 2.o Guard Column Starter Kit?
Smaller‑particle, higher‑efficiency analytical methods place increased stress on column hardware and packing. The 40218‑PG1 starter kit is designed to:
Protect analytical columns from particulates and strongly retained contaminants
Maintain chromatographic performance at elevated operating pressures
Match Bidentate C18™ 2.o selectivity without adding dead volume or band broadening
Extend analytical column lifetime in demanding near‑UHPLC applications
Kit Contents
1 × Stainless‑Steel Guard Cartridge Holder
Designed for high‑pressure operation
Compatible with all Cogent TYPE‑C™ guard cartridges
Provides secure sealing and minimal extra‑column volume
5 × Bidentate C18™ 2.o Guard Cartridges
2.0 mm ID × 10 mm length
2.2 µm particle size, 120 Å pore size
Packed with Cogent TYPE‑C™ silica hydride stationary phase
Individually packaged in protective Delrin cases
Key Features
Phase‑Matched High‑Efficiency Guard Protection
Same Bidentate C18™ 2.o TYPE‑C™ chemistry as analytical columns
Preserves selectivity, retention, and efficiency
Suitable for near‑UHPLC and high‑performance HPLC methods
Designed for 2.1 mm ID Analytical Columns
Optimized for 2.1 mm low‑flow and LC‑MS workflows
Supports high‑pressure, high‑efficiency separations
High‑Pressure‑Capable Hardware
Stainless‑steel holder suitable for elevated operating pressures
Reliable sealing with minimal dead volume
Durable construction for routine analytical use
Long‑Term Column Protection
Five cartridges typically support extended column lifetime
Reduces analytical column replacement frequency
Minimizes system downtime
Typical Applications
High‑efficiency analytical HPLC
Near‑UHPLC methods on standard HPLC systems
LC‑MS and LC‑MS/MS
Method development using 2.2 µm columns
Protection of high‑value TYPE‑C™ analytical columns