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Rxi-XLB Secondary Columns for GCxGC (fused silica)

low polarity proprietary phase
  • Convenient 2 m length is ideal for use as a secondary column in GCxGC analyses.
  • General purpose columns exhibiting extremely low bleed.
  • Unique selectivity.
  • Temperature range: 30 °C to 360 °C.
Ordering Notes

Custom lengths and film thicknesses available. Contact Technical Service or your local Restek representative.

SAVE MONEY! Get six columns for the price of five. Contact Customer Service or your local Restek representative for details!

Documentation and Instructions Sheets

Rxi-XLB Secondary Columns for GCxGC (fused silica)

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Catalog # Clear All
15115 2 m ea. 0.15 mm Rxi-XLB 0.15 µm 30 to 340/360 °C Select Deselect

Catalog # 15115

Length
2 m  
Units
ea.  
ID
0.15 mm  
Product Name
Rxi-XLB  
df (Film Thickness)
0.15 µm  
Temp Limits
30 to 340/360 °C  
15121 2 m ea. 0.18 mm Rxi-XLB 0.18 µm 30 to 340/360 °C Select Deselect

Catalog # 15121

Length
2 m  
Units
ea.  
ID
0.18 mm  
Product Name
Rxi-XLB  
df (Film Thickness)
0.18 µm  
Temp Limits
30 to 340/360 °C  
15128 2 m ea. 0.25 mm Rxi-XLB 0.25 µm 30 to 340/360 °C Select Deselect

Catalog # 15128

Length
2 m  
Units
ea.  
ID
0.25 mm  
Product Name
Rxi-XLB  
df (Film Thickness)
0.25 µm  
Temp Limits
30 to 340/360 °C  

What do Rxi columns mean to you? Three things:

  • Ultra-low bleed.
  • Exceptional inertness.
  • Reproducible performance, column after column.

Rxi fused silica capillary GC columns were designed specifically to be the best columns available for exceptional inertness, ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance, this combination of column characteristics assures Rxi columns will have long lifetimes. Restek chemists have also developed a stable, reproducible manufacturing process so that Rxi columns will meet your needs every time you install a new column.

Improvements in polymer synthesis and tubing deactivation enable us to make inert, stable Rxi-XLB columns especially well-suited for analyzing active, high molecular weight compounds with sensitive GC-MS systems, including ion trap detectors. Excellent efficiency, coupled with inertness, low bleed, and high thermal stability, make Rxi-XLB columns ideal for analyzing semivolatile compounds in drinking water.

Rxi-XLB columns are a great choice for semivolatile organics analysis by EPA Method 525.2. An Rxi-XLB column plus some simple adjustments to the injection conditions can greatly improve sensitivity for active and high molecular weight Method 525.2 target compounds. For this application, also consider a drilled Uniliner inlet liner, which eliminates contact between the sample and the hot metal surfaces in the injection port, helping prevent analytes from degrading in the injection port.