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FID
Posted: Tue Aug 02, 2005 12:26 pm
by Tom
Does anyone have a lit. source on FID response with empirical calculations. I'm looking for a source that lists effects of ketones and alcohols relative to sat. hydrocarbons. I want to roughly adjust for impurities for which I don't have standards.
Thanks
Tom
Posted: Wed Aug 03, 2005 5:38 am
by Okkie
The mechanism of response of flame ionisation detectors, Sternberg et al. In "Gas Chromatography" by Breneer et al, Academic Press, New York, 1962; pg 231-267
Jorgens, Picel, Stamoudis; Anal. Chem. 1990, 62, 683-689
Calculation of flame ionization detector relative response factor using the effective carbon number concept, James T. Scanlon and Donald E. Willis, Journal of chromatographic science, volume 23, august 1985; pg 333-339
Chromatographie in der Gasphase; Vierter band teil 2, mannheim, hoghschultaschenbuch-verlag; 1969, rudolph kaiser.
good luck
Okkie
Posted: Mon Aug 08, 2005 2:06 pm
by famahyari
Hi
what is meaning of "AFS"?
for example, sensitivity=32*10E-12 AFS.
THANKS
FID AFS
Posted: Mon Aug 08, 2005 2:16 pm
by skunked_once
AFS = Amps Full Scale. It is the magnitude of the electronic signal output from the electrometer of the GC. In the old days of integrators, the output range had to be adjusted to keep the peaks on-scale so that they could be measured.
Re: FID AFS
Posted: Mon Aug 08, 2005 2:59 pm
by famahyari
Dear skunked_once
thanks for reply