Hi,

I want to run HPLC and purified solvent through GCFID.

Im more interested to see the impurities peak.

Let say I want to run Acetonitrile using wax column with ID=0.25mm; thickness=0.25um; length=30m, do i need to ramp up slowly or faster?

How about the sample volume? How to ensure the impurities peak are not hiding behind the ACN peak?

Thanks a lot.


p/s: Im newbie in chromatography. :shock: