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Agilent-Molesieve
Molecular sieves (Molsieves) are synthetic or natural zeolites or other materials which have a high adsorption capacity for gases and solutes with certain molecular sizes (for example aluminosilicates). These can be used as stationary phases for gas chromatography. The selectivity depends on the pore size of the molecular sieve. Molsieve GC columns are available as capillary columns (PLOT columns) or as packed columns.
Application areas are for example the analysis of permanent gases.
Technical Data
PLOT Columns:
Agilent CP-Molsieve 5Å:
- Separate argon and oxygen at ambient temperature to reduce costs
- High efficiency, symmetrical peaks
Agilent HP-PLOT-Molesieve:
- A PLOT column for the analysis of permanent gases
- O2, N2, CO and CH4 resolve in less than 5 min
- Durable molecular sieve 5Å coating minimizes baseline spiking and damage to multiport valves
- Select a thick film for Ar/O2 separation without cryogenic cooling
| Column name | Phase | Polarity | USP | Diameter | Film thickness | Tmax |
| Agilent HP-PLOT Molesieve | 5Å Molecular sieve | N/A | N/A | 0.32 mm
0.53 mm | 12.0, 25.0 µm
25.0, 50.0 µm | 300 °C |
| Agilent CP-Molsieve 5Å | 5Å Molecular sieve | N/A | N/A | 0.25 mm
0.32 mm
0.53 mm | 30.0 µm
10.0, 30.0 µm
15.0, 50.0 µm | 350 °C |
Packed columns:
| Column name | Phase | Polarity | USP | Diameter | Mesh | Tmax |
| MolSieve 5Å | N/A | N/A | N/A | 1.0, 2.0, 2.1, 4.0 mm | 45/60 60/80 80/100 100/120 | N/A |
| MolSieve 13X | N/A | N/A | N/A | 1.0, 2.0 mm | 45/60 60/80 80/100 | N/A |