PLOT Columns

• 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.
  
  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!
  
  Literature: Analyze Trace Polar Hydrocarbons More Accurately and Reliably With New Alumina BOND/MAPD PLOT Columns (1.49 MB PDF)

• 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.
• Metal Siltek®-treated tubing is incredibly durable, allowing MXT® columns to be tightly coiled without breaking for use in smaller GC ovens.
  MXT®-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 fused silica Rt®-Alumina columns!
  
  Literature: Analyze Trace Polar Hydrocarbons More Accurately and Reliably With New Alumina BOND/MAPD PLOT Columns (1.49 MB PDF)

Advantages of metal MXT® PLOT columns include:

• Can be made in small coil diameters—perfect for tight spaces.
• Rugged material withstands rough handling and shock.
• Designed for robust performance in process GCs and field instruments.
• Available in 3.5″-coil diameter or 7″-diameter, 11-pin cage.

Advantages of metal MXT® PLOT columns include:

• Can be made in small coil diameters—perfect for tight spaces.
• Rugged material withstands rough handling and shock.
• Designed for robust performance in process GCs and field instruments.
• Available in 3.5″-coil diameter or 7″-diameter, 11-pin cage.

• Improved inertness for chlorofluorocarbon (CFC)-type compounds.
• Highly selective alumina-based column, separates most CFCs.
• High retention and capacity for CFCs.

Advantages of metal MXT® PLOT columns include:

• Can be made in small coil diameters—perfect for tight spaces.
• Rugged material withstands rough handling and shock.
• Designed for robust performance in process GCs and field instruments.
• Available in 3.5″-coil diameter or 7″-diameter, 11-pin cage.

Advantages of metal MXT® PLOT columns include:

• Can be made in small coil diameters—perfect for tight spaces.
• Rugged material withstands rough handling and shock.
• Designed for robust performance in process GCs and field instruments.
• Available in 3.5″-coil diameter or 7″-diameter, 11-pin cage.

• Restek's lowest polarity alumina column.
• Low moisture sensitivity reduces the need for frequent regeneration.
• Acetylene elutes before n-butane.
• Methyl acetylene (impurity in 1,3-butadiene) elutes before 1,3-butadiene.

Guaranteed Reproducibility
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 (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.

• Polar PLOT column, incorporating divinylbenzene ethylene glycol/dimethylacrylate.
• Use for the analysis of polar and nonpolar compounds.

• Midpolarity PLOT column, incorporating high 4-vinylpyridine.
• Use for the analysis of nonpolar and polar compounds.

• Nonpolar PLOT column incorporating 100% divinylbenzene.
• Excellent for analysis of C1 to C3 isomers and alkanes up to C12.
• High retention for CO₂ simplifies gas analysis; CO₂ and methane separated from O₂/N₂/CO (Note: O₂/N₂/CO not separated at room temperature).
• Use for analysis of oxygenated compounds and solvents.
• Maximum temperature of 300 °C.

• Intermediate polarity PLOT column incorporating low 4-vinylpyridine.
• Separates ethane, ethylene and acetylene to baseline.

Restek’s molecular sieve 5A PLOT columns are designed for efficient separation of Ar/O₂ and other permanent gases, including CH₄, C₂H₆, and CO. Special coating and deactivation procedures ensure chromatographic efficiency and the integrity of the porous layer coating. Molecular sieves have very high retention, allowing separations of permanent gases at temperatures above ambient. Our deactivation technology also allows CO to elute as a sharp peak. Additionally, our unique immobilization process guarantees that the uniform particles remain adhered to the tubing—even after continuous valve-cycling.
Our revolutionary molecular sieve 5A PLOT columns separate Ar/O₂ and H₂/He at ambient temperature or above. These columns also are an excellent choice for rapid separation of permanent gases in refinery or natural gas.

• Includes two Press-Tight® connectors and a 2.5 m column.
• Protects detector and valves; connects between column and detector or valve.
• Eliminates detector spikes and scratches in valve rotors.