CUSTOM ITEM: HPLC Column, Bidentate C8 2.o, 2.2um, 3.0mm ID x 150mm Length, 120A. Cogent TYPE-C Brand. 1 EA.
Additional Info:
The 40208‑15P‑3 Cogent Bidentate C8™ 2.o HPLC Column is a custom‑manufactured, mid‑bore, long‑format reversed‑phase column designed for laboratories that require alternative C8 selectivity with enhanced resolution, while also reducing solvent consumption compared to traditional 4.6 mm ID formats. Built on Cogent TYPE‑C™ silica hydride technology, this column delivers excellent selectivity, faster equilibration, and near‑UHPLC performance on standard analytical HPLC systems.
The Bidentate C8™ 2.o stationary phase uses a shorter alkyl ligand than C18, providing controlled hydrophobic interaction for non‑polar and hydrophobic analytes that may be excessively retained on C18 columns. The silica hydride surface with direct silicon–carbon bonding minimizes secondary interactions and maintains stable retention behavior across a broad method window.
With a 3.0 mm internal diameter and 150 mm length, this column offers resolution comparable to longer 4.6 mm ID columns, but operates at lower flow rates, resulting in significant solvent savings. Importantly, this efficiency gain does not require specialized low‑flow instrumentation, making it an attractive format for laboratories looking to optimize operating costs without changing hardware.
Why Choose the 3.0 × 150 mm Bidentate C8™ 2.o Format
This configuration is commonly selected when:
C18 columns are overly retentive and mask selectivity differences
Hydrophobic or non‑polar analytes require moderated reversed‑phase retention
Higher resolution is needed than shorter C8™ 2.o columns provide
Solvent‑use reduction is desired without migrating to 2.1 mm systems
The extended 150 mm length increases plate count and separation efficiency, while TYPE‑C™ silica hydride chemistry ensures fast equilibration and long column life.
Key Features
Cogent TYPE‑C™ Silica Hydride Technology
Reduced silanol activity and secondary interactions
Faster equilibration than conventional silica‑based C8 columns
Excellent chemical robustness and reproducibility
Bidentate C8™ 2.o Bonding
Two‑point attachment via direct Si–C bonds
Alternative reversed‑phase selectivity when C18 is too retentive
Controlled hydrophobic retention for difficult analytes
Near‑UHPLC Efficiency (2.2 µm)
High efficiency on standard analytical HPLC systems
Improved resolution and peak capacity
Suitable for demanding analytical methods
Solvent‑Efficient Mid‑Bore Geometry
3.0 mm ID × 150 mm length
Comparable run times to 4.6 mm ID columns
Lower flow rates and reduced mobile‑phase consumption
No specialized low‑flow equipment required
Typical Applications
Analytical HPLC requiring alternative reversed‑phase selectivity
Hydrophobic and non‑polar compounds
Situations where C18 chemistry is overly retentive
High‑resolution method development
Solvent‑reduction initiatives and cost‑efficient workflows
Made‑to‑Order & Pricing Information
This is a custom, made‑to‑order item.
Orders cannot be canceled once placed
Custom items are non‑returnable