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Molecules 2019, 24(5), 953; https://doi.org/10.3390/molecules24050953

Magnetic Polyamide Nanocomposites for the Microextraction of Benzophenones from Water Samples

1
Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran
2
Departamento de Química Analítica, Instituto Universitario de Investigación en Química Fina y Nanoquímica IUNAN, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie, E-14071 Córdoba, Spain
*
Authors to whom correspondence should be addressed.
Academic Editor: Constantine D. Stalikas
Received: 16 January 2019 / Revised: 18 February 2019 / Accepted: 1 March 2019 / Published: 8 March 2019
(This article belongs to the Special Issue New Materials in Microextraction Techniques)
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Abstract

In this article, the influence of the monomers on the extraction efficiency and the effect of the addition of surfactants during the synthesis have also been considered. The sorption capacity of the resulting nanocomposites has been evaluated, in the dispersive micro-solid phase extraction format, by determining that of six benzophenones in water using ultra performance liquid chromatography (UPLC) combined with photodiode array detection. Under the optimum conditions, the limits of detection were in the range of 0.5–4.3 ng/mL and the repeatability, expressed as the relative standard deviation (RSD), varied between 1.5% and 5.6%. The proposed method has been applied for the analysis of real water samples, providing relative recoveries in the interval of 84–105% View Full-Text
Keywords: dispersive micro-solid phase extraction; magnetic polyamide nanocomposite; UPLC-DAD; benzophenones dispersive micro-solid phase extraction; magnetic polyamide nanocomposite; UPLC-DAD; benzophenones
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Ghambari, H.; Reyes-Gallardo, E.M.; Lucena, R.; Saraji, M.; Cárdenas, S. Magnetic Polyamide Nanocomposites for the Microextraction of Benzophenones from Water Samples. Molecules 2019, 24, 953.

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