GC Phase Guide - Analytical Products

The polarity of the solute is crucial for the choice of stationary compound, which in an optimal case would have a similar polarity than the solute.
dot-red GC columns are available in High, Low and intermediate polarities.

Common dot-red stationary phases include Methyl siloxane, Methyl polysiloxane, Cyanpropyl, phenyl, Polyethylene glycol (wax) and Cyanpropyl polysiloxane.

For an overview of GC Capillary Columns please see here

Cyclodextrin Chiral GC Columns

Cyclodextrin Chiral GC Columns GC Phase Guide

Cyclodextrins are oligosaccharides formed from the bonding of six to twelve glucopyranose (sugar) units into a cyclic, cone shaped structure. The number of sugar units varies from 6 to 12. Three sizes are commonly used in the manufacture of commercially available GC phases: alpha, beta & gamma corresponding to 6, 7 and 8 glucopyranose units …more


DR-WAX MS GC Column High Polarity Stationary Phase

DR-WAX MS GC Column High Polarity Stationary Phase GC Phase Guide

100% Polyethylene glycol (low bleed)

DR-WAX is a High polarity 100% Polyethylene glycol (low bleed) phase for GC columns
DR-WAX phase is High Polarity
DR-WAX phase GC columns are equivalent to:
Agilent/J&W: DB-Wax, HP-Wax
Alltech (Grace): AT-Wax ms
Phenomenex: ZB-Wax
Quadrex: 007-CW
Restek: Stabilwax
SGE: BP-20
Supelco: OmegaWax
Varian: CPWax 52CB


DR-10 FAME GC Column Very High Polarity Stationary Phase

DR-10 FAME GC Column Very High Polarity Stationary Phase GC Phase Guide

100% Cyanpropyl polysiloxane

DR-10 FAME is a Very High polarity 100% Cyanpropyl polysiloxane phase for GC columns
DR-10 FAME phase is Very High Polarity
DR-10 FAME phase GC columns are equivalent to:
Agilent/J&W: HP-88
Alltech (Grace): AT-Silar
Restek: Rtx-2330
SGE: BPX-70
Supelco: SP-2330, SP-2560, Sp-2331, SP-2380
Varian: CPSil 88


DR-FFAP GC Column High Polarity Stationary Phase

DR-FFAP GC Column High Polarity Stationary Phase GC Phase Guide

100% Polyethylene glycol, acid modified

DR-FFAP is a High polarity 100% Polyethylene glycol, acid modified
phase for GC columns
DR-FFAP phase is High Polarity
DR-FFAP phase GC columns are equivalent to:
Agilent/J&W: DB-FFAP
Alltech (Grace): AT-1000
Quadrex: 007-FFAP
Restek: Stabilwax-DA
SGE: BP-21
Supelco: SPB-1000
Varian: CPWax 58CB


DR-WAX GC Column High Polarity Stationary Phase

DR-WAX GC Column High Polarity Stationary Phase GC Phase Guide

100% Polyethylene glycol

DR-WAX is a High polarity 100% Polyethylene glycol
phase for GC columns
DR-WAX phase is High Polarity
DR-WAX phase GC columns are equivalent to:
Agilent/J&W: DB-Wax, HP-Wax
Alltech (Grace): AT-Wax
Phenomenex: ZB-Wax
Quadrex: 007-CW
Restek: Rtx-Wax
SGE: BP-20
Supelco: OmegaWax
Varian: CPWax 52CB


DR-50 GC Column Medium Polarity Stationary Phase

DR-50 GC Column Medium Polarity Stationary Phase GC Phase Guide

50% Cyanopropyl, 50% Methyl polysiloxane

DR-50 is a Medium polarity 50% Cyanopropyl, 50% Methyl polysiloxane
phase for GC columns
DR-50 phase is Medium Polarity
DR-50 phase GC columns are equivalent to:
New Column No Equivalent Columns.


DR-225ms GC Column Medium Polarity Stationary Phase

DR-225ms GC Column Medium Polarity Stationary Phase GC Phase Guide

25% Cyanopropyl, 25% Phenyl, 50% Methyl polysiloxane (Low Bleed)

DR-225ms is a Medium polarity 25% Cyanopropyl, 25% Phenyl, 50% Methyl polysiloxane low bleed
phase for GC columns
DR-225ms phase is Medium Polarity
DR-225ms phase GC columns are equivalent to:
New Column No Equivalent Columns.


DR-225 GC Column Medium Polarity Stationary Phase

DR-225 GC Column Medium Polarity Stationary Phase GC Phase Guide

25% Cyanopropyl, 25% Phenyl, 50% Methyl polysiloxane

DR-225 is a Medium polarity 25% Cyanopropyl, 25% Phenyl, 50% Methyl polysiloxane
phase for GC columns
DR-225 phase is Medium Polarity
DR-225 phase GC columns are equivalent to:
Agilent/J&W: DB-225, HP-225
Alltech (Grace): AT-225
Quadrex: 007-225
Restek: Rtx-225
SGE: BP-225
Varian: CPSil 43CB


DR-200 GC Column Medium Polarity Stationary Phase

DR-200 GC Column Medium Polarity Stationary Phase GC Phase Guide

100% Trifluoropropyl methyl polysiloxane

DR-200 is a Medium polarity 100% Trifluoropropyl methyl polysiloxane phase for GC columns
DR-200 phase is Medium Polarity
DR-200 phase GC columns are equivalent to:
Agilent/J&W: DB-200, DB-210
Alltech (Grace): AT-210
Quadrex: 007-210
Restek: Rtx-200
Supelco: SP-2401
Varian: VF-200 ms


DR-17ms GC Column Medium Polarity Stationary Phase

DR-17ms GC Column Medium Polarity Stationary Phase GC Phase Guide

50% Phenyl, 50% Methyl polysiloxane (Low Bleed)

DR-17ms is a Medium polarity 50% Phenyl 50% Methyl polysiloxane low bleed phase for GC columns
DR-17ms phase is Medium Polarity