Suzan,

Each column manufacturer will have a comparable column with similar
coating, and generally speaking all would meet the needs of the gas bench
application. I'm partial to the GSQ from J&W (now Agilent) because the
bonded phase is more stable than from other companies. That, however,
shouldn't be a huge issue in the GasBench, where the system isn't normally
fiddle with.

Paul Eby
University of Victoria


At 03:00 AM 12/14/2004, you wrote:

>Dear all,
>
>We are working on the Finnigan DeltaPlus with a gasbench. The capillary
>column needs to be replaced. The one we are using now is a Varian
>PLOT-fused silica (25m * 0.32 mm (ID)) with a poraplot-Q coating. I am
>curious to know what other kind of capillary column can be used for the
>Gasbench and if this makes a difference.
>
>Thanks
>
>Suzan
>