Unique RP Columns
Columns with alternate selectivity to "standard" ODS
ACE C18-AR (C18 - Phenyl), C18-Amide
ES Industries Epic Phenyl-Hexyl
ES Industries
Chromegabond PSC (C8/C18)
HALO Phenyl-Hexyl
HALO RP-Amide
Hichrom RPB (C8/C18)
Kromasil Eternity Phenyl-Hexyl
Columns of long-chain alkyl phases
Acclaim C30
Cogent C27, C30
Cosmosil C22-AR-II
Develosil C30 (many types)
Eprogen C30 (NPS-TAS)
ES Industries Chromegabond C22
HALO C30
InertSustain C30
Mixed-mode phases
Acclaim WAX-1, WCX-1, HILIC-1, Trinity P1
Columns of non-silica based phases
ES Industries GammaBond Alumina
Inertsil Titansphere
Merck-Millipore Aluspher
Thermo Hypercarb
ZirChrom zirconia-based phases
ZirChrom titania-based phases
Columns of fluorinated phases .... link