Abstract
AbstractThe simultaneous determination of trace concentrations of saturated and a,ॆ‐unsaturated carbonyl compounds in simple or complex systems at a single wavelength is described. From the wavelength of maximum absorbance of the alkaline carbonyl‐2,4‐dinitrophenylhydrazone determined at a precise time‐interval, the total carbonyl, percentage of saturated carbonyl, and ॖg C = O/Absorbance unit are then subsequently calculated from previously determined trilinear parameters. These parameters are calculated from the relative response of known concentrations of pure (99.6+%) saturated anda,ॆ‐unsaturated carbonyl compounds prepared by large‐scale high resolution GLC. The method is applicable in simple or complex systems, such as hydrocarbon, aromatic or aliphatic, oxygenated ester, acid, alcohol or ether systems as well as kerosenes and petroleum distillates.
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