By Anonymous on Friday, November 22, 2002 - 12:01 pm:
I was using a FFAP column to determine acetic acid in water .My brand new Nukol begins to tail terrible the acetic acid after only 140 injections.
is the lifetime for FFAP column so short?
some advice?
thanks
By Anonymous on Friday, November 22, 2002 - 12:02 pm:
wrong place ,sorry!
By Anonymous on Friday, November 22, 2002 - 01:52 pm:
If you allow the water to condense onto the phase then you are damaging the phase through hydrolysis. Nukol is an ester as is FFAP.
Keep your water vaporized and the column will last longer.
Rod
By Anonymous on Saturday, November 23, 2002 - 03:01 am:
but my lowest temperature is 150ēC,I dopn´t think that the water could condense in the column in this temperature
By Anonymous on Sunday, November 24, 2002 - 08:49 am:
I had the same problem with a FFAP (Macherey Nagel) like you.
After the injection of 2-3 standards acidified with HCl (3-5%) the peak form became very good.
(HCl is not absolutly deadly for your column).
good luck