PLOT columns are ideal for separating compounds that are gases at room temperatures. Agilent Technologies offers a comprehensive line of PLOT columns for analysis of fixed gases, low molecular weight hydrocarbon isomers, volatile polar compounds and reactive analytes such as sulfur gases, amines and hydrides. Our PLOT phases are offered in dimensions from 0.25 to 0.53 mm id, allowing for easy column selection for various detector and system requirements. For GC/MS systems, we offer several small diameter columns with truly bonded and immobilized stationary phases, eliminating potential detector fouling due to particle generation.
| Column |
Stationary Phase |
Typical Applications |
| HP-PLOT Molesieve |
5Å molecular sieve zeolite |
Permanent and noble gases. Thick and thin films available. Thick film column will resolve argon and oxygen at 35ºC.
|
| HP-PLOT Al2O3 “KCl” |
Aluminum oxide deactivated with KCl |
Least “polar” Al2O3 phase. Lowest retention of olefins relative to comparable paraffin. C1 to C8 hydrocarbon isomers. Column of choice for accurate quantitation of dienes, especially propadiene and butadiene from ethylene and propylene streams. |
| HP-PLOT Al2O3 “S” |
Aluminum oxide deactivated with sodium sulfate |
Excellent general use Al2O3 column. C1 to C8 hydrocarbon isomers. Best for resolving acetylene from butane and propylene from isobutane. |
| GS-Alumina |
Aluminum oxide deactivated with sodium sulfate |
Most “polar” of the Al2O3 columns. Highest retention of olefins relative to comparable paraffin. Excellent general use Al2O3 column. C1 to C8 hydrocarbon isomers. Best for resolving cyclopropane from propylene. Good stability and recovery from water saturation. |
| HP-PLOT Q |
Polystyrene-divinylbenzene |
C1 to C3 isomers, alkanes to C12, CO2, methane, air/CO, water, oxygenated compounds, sulfur compounds, solvents. |
| HP-PLOT U |
Divinylbenzene/ethylene |
More polar than HP-PLOT Q and GS-Q. C1 to C7 hydrocarbons, CO2, methane, air/CO, water, glycol dimethacrylate oxygenates, amines, solvents, alcohols, ketones, aldehydes. |
| GS-GasPro |
Proprietary, bonded silica-based |
C1 to C12 hydrocarbons, CO2, trace-level sulfurs, hydride gases, inorganic gases, halocarbons, SF6, oxygen/nitrogen separation at –80ºC. |
| GS-CarbonPLOT |
Bonded, monolithic carbon-layer |
C1 to C5 hydrocarbons, CO2, air/CO, trace acetylene in ethylene, methane. | |
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