peaks tailing

[labchi]

good morning to all,
My question is very simple.
Is possible to improve peaks tailing acting on the set up of the FID detector?
I talk about flows.
thank you very much

[Peter Apps]

Possible but unlikely. The inlet and the column, in that order, are far more likely to cause tailing than a detector gas flow (assuming that the column is properly installed of course).

Peter

[rb6banjo]

What is your system (analytes, column, injection solvent, etc.)?

[Consumer Products Guy]

Possible but unlikely. The inlet and the column, in that order, are far more likely to cause tailing than a detector gas flow (assuming that the column is properly installed of course).

Peter

Absolutely.

[ntruong]

If you have no issue with the program run, you can do isothermal program, reduce flow, and injection volume.

[Arne]

I would try these things first.

1. Change the inlet liner and do the same run.

2. Change the septum. Do the same run.

3. Could be column activity. Trim 1m or so off the column and do the same run.

[labchi]

It was an acqueous injection, but I solved my problems by working on the flow on column.
Probably my analytes (alcohols) are not the best for the prescribed stationary phase (Rt Q BOND).
I think that the best is 624.
anyway thanks to all for your support

[Jesse Robinson]

For aqueous injections I have had really good luck with the Rtx-Wax column from Restek. We run a variety of alcohols on this column and get good results.