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Updated: Jun 28, 2026
Nitrogen Compound Characterization in Fuels by Multidimensional Gas Chromatography
Published on: May 15, 2020
Determination of carbaryl as its primary metabolite, 1-naphthol, by reversed-phase high-performance liquid
K A Massey1, D L Van Engelen, I M Warner
1Department of Chemistry, University of North Carolina at Asheville, Asheville, NC 28804, USA.
Abstract:
Carbaryl and its hydrolysis product, 1-naphthol, are determined simultaneously, and in a mixture of other pesticides, by reversed-phase high-performance liquid chromatography (HPLC). Fluorometric detection affords a higher degree of selectivity than absorbance detection, while providing detection limits of 1.0 ng ml(-1) and 1.4 mg ml(-1) for 1-naphthol and carbaryl, respectively. The described method requires no enrichment of samples and includes a simple hydrolysis step. Additionally, enhancement of fluorescence detection signal intensity is explored through HPLC solvent composition effects as well as through formation of cyclodextrin inclusion complexes. The method described in this report is a selective and fast alternative to the currently accepted U.S. Environmental Protection Agency (EPA) method of detection carbaryl in ground water.
