What is the difference between CSH C18 and CORTECS C18 packings? - WKB107248

ENVIRONMENT

• Charged surface hybrid (CSH)
• C18 column packings
• ACQUITY UPLC
• CORTECS
• XSelect

ANSWER

CSH C18 columns are packed with a fully porous, bridged ethylene hybrid (BEH) particle with an added positive surface charge and a trifunctionally bonded C18 ligand. This packing is endcapped and has a pore diameter (pore size) of 130 angstroms.

CORTECS C18 columns are packed with a silica-based, superficially porous, solid-core particle with a trifunctionally bonded C18 ligand.
This packing is endcapped and has a pore diameter (pore size) of 90 angstroms.

ADDITIONAL INFORMATION

ACQUITY UPLC Columns

XSelect Columns Web Page

XSelect HSS and CSH XP Columns

CORTECS Columns

Hybrid Particle Technology: Part 2: BEH: White Paper

Hybrid Particle Technology: Part 3: CSH: White Paper

Also see: What is the difference between BEH C18 and CORTECS C18 packings?