Low bleed

In GC, typically a column will express a ‘bleed’. This bleed is where the stationary phase generates a background signal or noise. A low bleed column is where this background noise is significantly reduced, improving the signal to noise ratio.

DR-WAX MS GC Column High Polarity Stationary Phase

DR-WAX MS GC Column High Polarity Stationary Phase Low bleed

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-225ms GC Column Medium Polarity Stationary Phase

DR-225ms GC Column Medium Polarity Stationary Phase Low bleed

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-17ms GC Column Medium Polarity Stationary Phase

DR-17ms GC Column Medium Polarity Stationary Phase Low bleed

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


DR-35 ms GC Column Low-Medium Polarity Stationary Phase

DR-35 ms GC Column Low-Medium Polarity Stationary Phase Low bleed

35% Phenyl, 65% Methyl polysiloxane (low bleed)
DR-35ms is a Low-Medium polarity 35% Phenyl, 65% Methyl polysiloxane (low bleed) phase for GC columns
DR-35ms phase is Low-Medium Polarity
DR-35ms phase GC columns are equivalent to:
Restek: Rtx-35 Sil ms


DR-5ms GC Column Low Polarity Stationary Phase

DR-5ms GC Column Low Polarity Stationary Phase Low bleed

5% Phenyl 95% Methyl polysiloxane
DR-5ms phase is a low bleed 5% Phenyl, 95% Methyl polysiloxane phase for GC columns
DR-5ms phase is Low Polarity
DR-5ms phase GC columns are equivalent to:
Agilent/J&W: DB-5ms, Ultra-2, HP-5ms
Alltech (Grace): AT-5 ms
Phenomenex:  ZB-5 ms
Quadrex: 007-5 ms
Restek: Rtx-5 ms
SGE:
Supelco: SPB-5, Equity-5
Varian: CP-Sil 8CB low bleed/ms


DR-1ms GC Column Low Polarity Stationary Phase

DR-1ms GC Column Low Polarity Stationary Phase Low bleed

100% Methyl polysiloxane (low bleed)
DR-1ms phase is a low bleed 100% Methyl polysiloxane phase for GC columns.
DR-1ms phase is Low Polarity
DR-1ms phase GC columns are equivalent to:
Agilent/J&W: DB-1ms, HP-1 ms
Alltech (Grace): AT-1
Phenomenex: ZB-1ms
Quadrex: 007-1
Restek: Rtx-1ms
SGE:
Supelco:SPB-1, Equity-1
Varian: CP-Sil 5CB Low bleed / ms