HP-PLOT MoleSieve columns are recommended for the analysis of permanent and noble gases. HP-PLOT MoleSieve columns have a layer of 12-50 µm thick molecular sieve 5A zeolite immobilized inside the tubing. This provides excellent separation of small molecules such as nitrogen, oxygen, argon, methane, and carbon monoxide. The absorbent is bound to the inner surface of the fused silica tubing, reducing the chance of signal spikes due to particles breaking free and invading the system valve or detec- tor. This results in improved sensitivi- ty of detectors and overall system accuracy.
This document introduces the Agilent family of Porous Layer Open Tubular (PLOT) fused silica columns designed to replace traditional packed columns. These columns offer advantages in resolution, speed, and reproducibility for analyzing fixed gases, low molecular weight hydrocarbon isomers, and volatile polar compounds.
The brochure details two main families: HP-PLOT MoleSieve columns containing 5A zeolite for permanent and noble gas analysis, and HP-PLOT Al2O3 columns using aluminum oxide particles with various deactivation types (KCl, S, M) optimized for hydrocarbon isomer separation.
| Column Type | Fused silica columns coated with a homogenous layer of adsorbent particles |
|---|---|
| Al2O3 Column ID Range | 0.25 mm to 0.53 mm |
| Al2O3 Temperature Limit (0.32/0.53mm) | 200°C |
| Al2O3 Temperature Limit (0.25mm) | 250°C |
The HP-PLOT Al2O3 KCl column is the choice for this application due to its low polarity.
They are suitable for resolving C1-C6 hydrocarbon isomers in hydrocarbon streams.