Analytical Letters · 1975 · 61 citations · 2 references
Natural SciencesChemistryChromatographic AnalysisOrganic ChemistryCarboxylic AcidsCarboxylic DerivativesChromatographyFatty Acid ChemistryLiquid ChromatographyAromatic Carboxylic AcidsChromogenic DetectionMild Reaction ConditionsStearic Acid Modification
Abstract O-p-Nitrobenzyl-N, N′-diisopropylisourea was shown to react under relatively mild conditions with carboxylic acids to yield the p-nitrobenzyl esters as chromogenic derivatives useful for liquid chromatographic analysis. The p-nitrobenzyl ester of stearic acid was detectable down to the picomole range.
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