Chromatography Forum

Yea I tried that on some old columns that were tailing badly. I used the solvent pump to fill them with DMCS and TMCS in chloroform and plugged the column with old septa and kept them in an oven at 55 deg overnight then reconditioned them in the morning. It made little difference. I also tried injecting the reagents splitless over and over.

I doubt it is stationary phase damage in this case as I usually see almost all peaks except straight hydrocarbons tailing when there is stationary phase damage.

I just ran a standard and it looks a million times better. Better than the GC/MS. There must have been some sort of contaminant in the GC column.

Thanks for all the help.

I just ran a standard and it looks a million times better. Better than the GC/MS. There must have been some sort of contaminant in the GC column.

Thanks for all the help.

I confess myself amazed ! Thanks for the feedback.

Peter

Glad that you have solved what I earlier described as "your 3 pipe" problem

Regards

Ralph