Ethyl salicylate and ethyl benzoate for vortex-assisted surfactant-enhanced emulsification microextraction of fungicides in water samples and analysis by high-performance liquid chromatography

ABSTRACT

Ethyl salicylate (EtSA) and ethyl benzoate (EtBZ) as alternative extraction solvents have been evaluated for vortex-assisted surfactant-enhanced emulsification microextraction (VASEME) of target fungicides (e.g. carbendazim, thiabendazole, and fuberidazole) before the high-performance liquid chromatographic analysis. Under optimum conditions, the preconcentration factors about 16–28 (18–33) and limits of detection in the range of 0.01–0.1 µg/L were achieved for both extraction solvents. Good recoveries in the range of 76.2–118.4% (85.7–114.6%) with the acceptable relative standard deviation lower than 10.4 were obtained at the concentration evaluation of 20 µg/L and 50 µg/L each fungicide in different water sample matrices. As a result, the proposed extraction solvents can be used as an alternative to other related solvents like methyl salicylate (MeSA) and methyl benzoate (MeBZ) for the preconcentration of target fungicides.

KEYWORDS:

• Carbendazim
• thiabendazole
• fuberidazole
• surfactant
• microextraction
• HPLC

Acknowledgments

The Thailand Research Fund (TRF) and Rajamangala University of Technology Isan (RMUTI) were acknowledged for financial support through the new scholars under the research grant no. TRG5780038.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Ethical approval

This article does not contain any studies with human.

Additional information

Funding

This work was supported by the Thailand Research Fund (TRF) and Rajamangala University of Technology Isan (RMUTI) [TRG5780038].