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Rt-Alumina BOND/MAPD Columns (fused silica PLOT)

  • Optimized deactivation produces maximum response when analyzing trace levels of acetylene, methyl acetylene, and propadiene.
  • Stable response factors make this column ideal for process-type applications where recalibration must be minimized.
  • High loadability reduces peak tailing and improves separations.
  • Extended temperature range up to 250 °C for fast elution of high molecular weight (HMW) hydrocarbons and accelerated column regeneration following exposure to water.
  • Temperature range: -60 to 250 °C.

Rt-Alumina BOND/MAPD PLOT columns are made specifically for the analysis of petrochemicals and downstream products such as ethylene, propylene, butylenes, and butadiene.

Also available in metal MXT-Alumina columns!

A GC column phase cross-reference is also available.
Documentation and Instructions Sheets

Rt-Alumina BOND/MAPD Columns (fused silica PLOT)

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Catalog # Clear All
19777 30 m ea. 0.53 mm 10 µm -60 to 250 °C Select Deselect

Catalog # 19777

Length
30 m  
Units
ea.  
ID
0.53 mm  
Product Name
Rt-Alumina BOND/MAPD  
df (Film Thickness)
10 µm  
Temp Limits
-60 to 250 °C  
19778 50 m ea. 0.53 mm 10 µm -60 to 250 °C Select Deselect

Catalog # 19778

Length
50 m  
Units
ea.  
ID
0.53 mm  
Product Name
Rt-Alumina BOND/MAPD  
df (Film Thickness)
10 µm  
Temp Limits
-60 to 250 °C  
19779 30 m ea. 0.32 mm 5 µm -60 to 250 °C Select Deselect

Catalog # 19779

Length
30 m  
Units
ea.  
ID
0.32 mm  
Product Name
Rt-Alumina BOND/MAPD  
df (Film Thickness)
5 µm  
Temp Limits
-60 to 250 °C  
19780 50 m ea. 0.32 mm 5 µm -60 to 250 °C Select Deselect

Catalog # 19780

Length
50 m  
Units
ea.  
ID
0.32 mm  
Product Name
Rt-Alumina BOND/MAPD  
df (Film Thickness)
5 µm  
Temp Limits
-60 to 250 °C  
19781 30 m ea. 0.25 mm 4 µm -60 to 250 °C Select Deselect

Catalog # 19781

Length
30 m  
Units
ea.  
ID
0.25 mm  
Product Name
Rt-Alumina BOND/MAPD  
df (Film Thickness)
4 µm  
Temp Limits
-60 to 250 °C  

Restek Rt-Alumina BOND columns are highly selective for C1–C5 hydrocarbons and separate all saturated and unsaturated hydrocarbon isomers above ambient temperatures. The reactivity of the aluminum oxide stationary phase is minimized by deactivation with inorganic salts, such as KCl or Na2SO4, to improve column response for polar unsaturates, like dienes, and the column's sensitivity (or response) ensures linear and quantitative chromatographic analysis for these compounds. Strong bonding minimizes particle generation and release, which allows valve switching with minimal risk to the injection or detection systems. And because they are stable up to at least 200 °C, Rt-Alumina BOND columns can be regenerated to restore full efficiency and selectivity by conditioning at their maximum temperature if water is adsorbed. High capacity and loadability give you exceptionally symmetrical peaks, making these columns ideal for volatile hydrocarbon separations at percent levels, as well as impurity analyses at ppm concentrations. Restek Rt-Alumina BOND PLOT columns are manufactured on fused silica tubing; select phases are also available on metal MXT tubing.

To ensure reproducible retention times and predictable flow behavior column to column, each Rt-Alumina BOND column is extensively tested. A hydrocarbon test mix confirms proper phase retention and selectivity. To calculate k (retention or capacity factor), which is a measure of phase retention, 1,3-butadiene is used, while selectivity is measured using retention indices for propadiene and methyl acetylene. The resolution of trans-2-butene and 1-butene is also verified and, to measure efficiency, plates per meter are checked using 1,3-butadiene.

We do not recommend recoiling PLOT columns as this may cause particles to dislodge from the side of the tubing.

Restek's R&D chemists have optimized the deactivation technology applied to our Rt-Alumina BOND/MAPD column for improved analysis of trace concentrations of polar hydrocarbons like acetylene, methyl acetylene, and propadiene in hydrocarbon streams containing higher levels of C1-C5 hydrocarbons. Our alumina PLOT deactivation produces an incredibly inert column that offers superior reproducibility and stable response factors to maximize the number of analyses before recalibration is required. Its high sample capacity reduces peak tailing, thereby improving the separation of target compounds. In addition, a 250 °C maximum operating temperature lets you more quickly elute hydrocarbons up to dodecane and reduces regeneration time when the column is exposed to water from samples or carrier gases.

Similar Phases

Agilent: Select Al2O3 MAPD