Increasing Flame Ionization Detector Response by Silylation: The Effective Carbon Number of Carboxylic Acids
Abstract
Detector response of carboxylic acids (C2–C12, straight and branched chain) were investigated using a flame ionization detector (FID) in a capillary gas chromatographic system. The response of the FID for hydrocarbons is almost directly proportional to the carbon quantity introduced into the flame. Heteroatoms in the molecule reduce signal magnitude, depending on their quality and on the bond they are involved in. We expressed this reduced response with the effective carbon number (ECN). We determined the ECN contribution (ΔECN) of the carboxyl group on the alkyl skeleton. We examined how the responses of carboxylic acids change if trimethylsilyl derivatives are evaluated and we compared the ECN of the neat and derivatized form.
Keywords:
carboxylic acids, silylated derivatives, effective carbon number, flame ionization detectorPublished Online
2023-09-25
How to Cite
Mátyási, J., Nyerges, G., Balla, J. “Increasing Flame Ionization Detector Response by Silylation: The Effective Carbon Number of Carboxylic Acids”, Periodica Polytechnica Chemical Engineering, 67(4), pp. 565–572, 2023. https://doi.org/10.3311/PPch.22827
Issue
Section
Articles