Agilent 160-2255-5 is deactivated fused silica tubing designed for GC and GC/MS applications. It has a 0.25 mm inner diameter, 5 m length, and 0.36 mm outer diameter. The deactivated inner surface minimizes unwanted analyte interactions and enables use as a retention gap, guard column, or transfer line.
Deactivated Surface
The deactivated inner surface minimizes active sites on the fused silica and reduces analyte adsorption.
This is particularly useful for:
- polar compounds,
- active analytes,
- trace-level analysis,
- samples sensitive to surface interactions.
Deactivated tubing can therefore help preserve peak shape and minimize analyte losses.
Retention Gap Applications
When used as a retention gap, the tubing is installed ahead of the analytical GC column.
It can help:
- focus analytes at the column inlet,
- improve peak shapes,
- reduce solvent-related effects,
- support selected large-volume injection workflows.
Guard Column Applications
The tubing can also be used as a guard column to protect the analytical GC column from:
- nonvolatile matrix components,
- contamination,
- deposits.
A contaminated guard section can be replaced without unnecessarily shortening or replacing the analytical column.
Transfer Line Applications
Its deactivated surface also makes the tubing suitable as an inert transfer line in GC and GC/MS configurations where sample interaction with the flow-path surface should be minimized.
Technical Specifications
- PN: 160-2255-5
- Technique: GC / GC-MS
- Material: Fused silica
- Surface: Deactivated
- Inner Diameter (ID): 0.25 mm
- Outer Diameter (OD): 0.36 mm
- Length: 5 m
- Stationary Phase: None
