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Stabilwax®-DA Fused Silica Columns

By Restek

Polar phase: Crossbond® acid-deactivated Carbowax®polyethylene glycol

The analysis of volatile free fatty acids has been difficult on common siloxane stationary phases because of analyte adsorption and low sample capacity. Although PEG stationary phases exhibit improved capacity and better selectivity for many free acids, peak tailing still can occur. Stabilwax®-DA is a bonded PEG stationary phase that has been specially deactivated to analyze acidic compounds. The resulting inertness significantly reduces adsorption and increases sample capacity of volatile-free acids, thereby improving peak shape. It also eliminates the need to derivatize free fatty acids from C1 to C20, which simplifies sample preparation.

  • Application-specific columns for free (underivatized) acids, some inorganic acids.
  • Resistant to oxidative damage.
  • Temperature range: 40°C to 250°C.
  • Equivalent to USP G25, G35 phases.
               
Cat.No. Column L I.D. Film Thickness Temp Range EA    
226-11005 15m 0.25mm 0.10µm 40 to 250°C $347.00
1/EA
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226-11020 15m 0.25mm 0.25µm 40 to 250°C $335.00
1/EA
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226-11035 15 0.25 0.50 40 to 250 $335.00
1/EA
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226-11006 15 0.32 0.10 40 to 250 DISCONTINUED  
226-11021 15 0.32 0.25 40 to 250 $347.00
1/EA
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226-11036 15 0.32 0.50 40 to 250 $347.00
1/EA
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226-11051 15 0.32mm 1.00µm 40 to 240/250°C $347.00
1/EA
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226-11007 15 0.53 0.10 40 to 250 $398.00
1/EA
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226-11022 15 0.53 0.25 40 to 250 $386.00
1/EA
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226-11037 15 0.53 0.50 40 to 250 $386.00
1/EA
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226-11052 15 0.53 1.00 40 to 240/250 $386.00
1/EA
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226-11062 15 0.53 1.50 40 to 230/240 $398.00
1/EA
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226-11008 30 0.25 0.10 40 to 250 $537.00
1/EA
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226-11023 30m 0.25mm 0.25µm 40 to 250°C $537.00
1/EA
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226-11038 30 0.25 0.50 40 to 250 $537.00
1/EA
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226-11009 30 0.32 0.10 40 to 250 $574.00
1/EA
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226-11024 30 0.32 0.25 40 to 250 $574.00
1/EA
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226-11039 30 0.32 0.50 40 to 250 $574.00
1/EA
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226-11054 30 0.32 1.00 40 to 240/250 $574.00
1/EA
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226-11010 30 0.53 0.10 40 to 250 DISCONTINUED  
226-11025 30 0.53 0.25 40 to 250 $648.00
1/EA
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226-11040 30 0.53 0.50 40 to 250 $648.00
1/EA
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226-11055 30 0.53 1.00 40 to 240/250 $648.00
1/EA
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226-11065 30 0.53 1.50 40 to 230/240 $648.00
1/EA
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226-11011 60 0.25 0.10 40 to 250 DISCONTINUED  
226-11026 60m 0.25mm 0.25µm 40 to 250°C $915.00
1/EA
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226-11041 60 0.25 0.50 40 to 250 $915.00
1/EA
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226-11012 60 0.32 0.10 40 to 250 DISCONTINUED  
226-11027 60 0.32 0.25 40 to 250 $982.00
1/EA
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226-11042 60 0.32 0.50 40 to 250 $982.00
1/EA
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226-11057 60 0.32 1.00 40 to 240/250 $982.00
1/EA
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226-11013 60 0.53 0.10 40 to 250 DISCONTINUED  
226-11028 60 0.53 0.25 40 to 250 $1045.00
1/EA
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226-11043 60 0.53 0.50 40 to 250 $1077.00
1/EA
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226-11058 60 0.53 1.00 40 to 240/250 $1077.00
1/EA
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226-11068 60 0.53 1.50 40 to 230/240 $1115.00
1/EA
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