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Our PLOT columns, [Porous Layer Open Tubular], are manufactured from various adsorbents such as aluminum oxide, porous polymers, zeolites, ...
Their particles form a homogeneous layer of controlled thickness on the fused silica tube, and are immobilized by a proprietary process.
The very high specific surface areas of the adsorbents provide the capacities required for separations. Likewise, their different polarities induce a range of selectivities that make possible a very wide variety of separations, from the simplest to the most specific.
These columns are ideal for separating volatile and gaseous compounds.
| Nom | Media | Temperature |
|---|---|---|
| PLOT Al2O3/ "KCl", "S", "M" | Aluminum oxide, modified with KCL, Na2SO4 or Na2MoO4 | -60 to 200°C |
| PLOT Molesieve 5A | Molecular Sieve zeolite, 5Å | -60 to 300°C |
| PLOT Q | Crosslinked divinylbenzene polymer | -60 to 260/280°C |
| PLOT U | Crosslinked divinylbenzene ethylene glycol dimethacrylate | -60 to 200°C |
| PLOT GP | Modified porous silica layer | -60 to 250°C |
| PLOT type | Application | Compatibilité | |||
|---|---|---|---|---|---|
| H2O | Acid/Base | Liq. no-aqueux | Lavage avec solvents | ||
| Al2O3, KCl, S, M | Natural gas, Ethylene, Refineral gas, Propane, Propylene, Butadienes, CFCs, C1 to C5/C10, Nitrogen oxides | no | no | yes | no |
| Molecular Sieve 5Å | Air, Hydrogen, Argon, Nobel gases, Nitrogen, oxides Natural gas, CO, SF6, Refinery gas | no | faible | no | yes except H2O |
| Q | Air, CO, CO2, CH4, Hydrocarbon Gases, Oxygenates, Alcohols, N2O, Refinery Gas, Free Fatty Acids, Natural Gas, Solvents, Nitrogen, Oxygen, Argon,Sulfur Gas |
yes | yes | yes | yes |
| U | Amines in water, Primary Amines, CO2 in air moisture, Hydrocarbon Gases, Solvents, N2/CO, Sulfurs |
||||
| GP | C1/C2, Freons, Residue Solvents, Inorganic Gases, Sulfurs in Propylene (1ppm), Halocarbons, Mercaptans, Sulfur Gas |
yes | yes | yes | yes except acetone |
Choose a short column as a first choice, and increase its length to 50 or 60 m if retention is insufficient.
Choose a 0.53 mm id column if you have highly concentrated samples.
Choose a 0.32 mm column to improve basic separations or for GC-MS applications.
To preserve the homogeneity of the particle bed in the column, cut it carefully and cleanly, do not vibrate it, and do not bend the tube.
It is important to seal the column with a septum before storing it.
Inside the oven, maintain the column gas flow at a temperature of between 100°C and 150°C when inactive.
Direct injection of aqueous or unfiltered samples can damage Alumina and Molesieve PLOT columns.
If the column is contaminated, a long-term backwash may be considered.
Maximum operating temperature must be respected.
Helium is the preferred carrier gas.
If hydrogen is to be used as a carrier gas, then avoid high temperatures.
When using GC-MS, if particles enter the ion source,
clean them as soon as possible to prevent them from moving towards the detector or turbo-pump.
.
PLOT Al2O3, 50m x 0.53mm x 15um
Four: 60C 20C/min à 180C
| Description | imChem référence |
|---|---|
| Al2O3 KCL, 25 m x 0.25 mm x 5.0 µm | PLOT-ALK-25-0.25-5.0 |
| Al2O3 KCL, 30 m x 0.25 mm x 5.0 µm | PLOT-ALK-30-0.25-5.0 |
| Al2O3 KCL, 10 m x 0.32 mm x 5.0 µm | PLOT-ALK-10-0.32-5.0 |
| Al2O3 KCL, 15 m x 0.32 mm x 8.0 µm | PLOT-ALK-15-0.32-8.0 |
| Al2O3 KCL, 25 m x 0.32 mm x 8.0 µm | PLOT-ALK-25-0.32-8.0 |
| Al2O3 KCL, 30 m x 0.32 mm x 8.0 µm | PLOT-ALK-30-0.32-8.0 |
| Al2O3 KCL, 50 m x 0.32 mm x 8.0 µm | PLOT-ALK-50-0.32-8.0 |
| Al2O3 KCL, 60 m x 0.32 mm x 8.0 µm | PLOT-ALK-60-0.32-8.0 |
| Al2O3 KCL, 15 m x 0.53 mm x 15.0 µm | PLOT-ALK-15-0.53-15.0 |
| Al2O3 KCL, 30 m x 0.53 mm x 15.0 µm | PLOT-ALK-30-0.53-15.0 |
| Al2O3 KCL, 50 m x 0.53 mm x 10.0 µm | PLOT-ALK-50-0.53-10.0 |
| Al2O3 KCL, 50 m x 0.53 mm x 15.0 µm | PLOT-ALK-50-0.53-15.0 |
| Al2O3 KCL, 60 m x 0.53 mm x 15.0 µm | PLOT-ALK-60-0.53-15.0 |
| Al2O3 S, 25 m x 0.25 mm x 5.0 µm | PLOT-ALS-25-0.25-5.0 |
| Al2O3 S, 30 m x 0.25 mm x 5.0 µm | PLOT-ALS-30-0.25-5.0 |
| Al2O3 S, 15 m x 0.32 mm x 8.0 µm | PLOT-ALS-15-0.32-8.0 |
| Al2O3 S, 25 m x 0.32 mm x 8.0 µm | PLOT-ALS-25-0.32-8.0 |
| Al2O3 S, 30 m x 0.32 mm x 5.0 µm | PLOT-ALS-30-0.32-5.0 |
| Al2O3 S, 30 m x 0.32 mm x 8.0 µm | PLOT-ALS-30-0.32-8.0 |
| Al2O3 S, 50 m x 0.32 mm x 5.0 µm | PLOT-ALS-50-0.32-5.0 |
| Al2O3 S, 50 m x 0.32 mm x 8.0 µm | PLOT-ALS-50-0.32-8.0 |
| Al2O3 S, 60 m x 0.32 mm x 8.0 µm | PLOT-ALS-60-0.32-8.0 |
| Al2O3 S, 15 m x 0.53 mm x 15.0 µm | PLOT-ALS-15-0.53-15.0 |
| Al2O3 S, 30 m x 0.53 mm x 8.0 µm | PLOT-ALS-30-0.53-8.0 |
| Al2O3 S, 30 m x 0.53 mm x 15.0 µm | PLOT-ALS-30-0.53-15.0 |
| Al2O3 S, 50 m x 0.53 mm x 10.0 µm | PLOT-ALS-50-0.53-10.0 |
| Al2O3 S, 50 m x 0.53 mm x 15.0 µm | PLOT-ALS-50-0.53-15.0 |
| Al2O3 S, 60 m x 0.53 mm x 15.0 µm | PLOT-ALS-60-0.53-15.0 |
| Al2O3 M, 15 m x 0.32 mm x 8.0 µm | PLOT-ALM-15-0.32-8.0 |
| Al2O3 M, 30 m x 0.32 mm x 8.0 µm | PLOT-ALM-30-0.32-8.0 |
| Al2O3 M, 50 m x 0.32 mm x 8.0 µm | PLO |
For any question, please contact us at info@imchem.fr or +33 9 72 32 10 17