Acetic acid tail in FFAP column

Chromatography Forum: GC Archives: Acetic acid tail in FFAP column
Top of pagePrevious messageNext messageBottom of pageLink to this message  By Anonymous on Friday, November 22, 2002 - 12:03 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


Top of pagePrevious messageNext messageBottom of pageLink to this message  By Anonymous on Tuesday, November 26, 2002 - 06:50 am:

What's your program temperature for your application ? What's your dilution solvent ?
You can try working at lower temperature (beyond 250°) or buy a column with a bigger film thickness, it will result in a longer lifetime.

Laurent


Top of pagePrevious messageNext messageBottom of pageLink to this message  By Anonymous on Friday, November 29, 2002 - 01:45 am:

inj:180
det:240
column:80ēC for 2'and then 220ēC at 15ēC/min

I am injecting the the acids in water.


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