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on-column from splitless on hp-6890
Posted: Tue Aug 31, 2010 2:33 pm
by gamarra
Any one try to a on-column injection from
a split/splitless inlet? in splitless mode with
a appropriate liner may It work ?
The test method that I'm trying is
ASTM D 6584, using a DB-5 HT
Posted: Wed Sep 01, 2010 6:35 am
by Peter Apps
Restek have an inlet liner specifically for this - check out their web site.
Peter
Posted: Wed Sep 01, 2010 12:48 pm
by Rouan
Just be carefull of trying to this modification. You will need to find a syringe with a needle long enough to inject your sample on the column inside the oven. You cannot do on-column injections using a high injector temp.
Posted: Wed Sep 01, 2010 9:38 pm
by Victor
Don't you also need to modify the injector on such a system? For example, if using a standard septum injector, you require a needle robust (and thick enough) to pierce the septum but thin enough to enter the column-could be difficult. I guess this would work with wide bore columns though.