Baseline noise of phase chromatograph (FID detector)
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I would like to ask everyone how to convert the unit of baseline noise for a gas chromatograph equipped with a FID detector. The instrument displays the value in mv, but the standard used for calibration is A. How can this be converted?
This post was last edited by qugd on 2015-8-30 21:19. The acceptance criterion is A; what physical quantity is A – is it the absorbance value? It seems this unit isn’t used in chromatography. Another commonly used representative quantity for A, namely e, which is 0.1 nanometers, is a unit of length used to measure on the atomic scale. If it’s electric current, then don’t you know what Ohm’s law is used for?
Are you Shimadzu’s chromatography system? The instrument from Agilent that we use displays values in pA. Why is there such a strict requirement regarding this unit? For qualitative analysis by gas chromatography, retention time is used, while for quantitative analysis the peak area is utilized. Regardless of the method used for quantification, as long as it is consistent that’s fine