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Analytical and Bioanalytical Chemistry

, Volume 409, Issue 1, pp 243–250 | Cite as

Determination of azoxystrobin and chlorothalonil using a methacrylate-based polymer modified with gold nanoparticles as solid-phase extraction sorbent

  • Mónica Catalá-IcardoEmail author
  • Carmen Gómez-Benito
  • Ernesto Francisco Simó-Alfonso
  • José Manuel Herrero-MartínezEmail author
Research Paper

Abstract

This paper describes a novel and sensitive method for extraction, preconcentration, and determination of two important widely used fungicides, azoxystrobin, and chlorothalonil. The developed methodology is based on solid-phase extraction (SPE) using a polymeric material functionalized with gold nanoparticles (AuNPs) as sorbent followed by high-performance liquid chromatography (HPLC) with diode array detector (DAD). Several experimental variables that affect the extraction efficiency such as the eluent volume, sample flow rate, and salt addition were optimized. Under the optimal conditions, the sorbent provided satisfactory enrichment efficiency for both fungicides, high selectivity and excellent reusability (>120 re-uses). The proposed method allowed the detection of 0.05 μg L−1 of the fungicides and gave satisfactory recoveries (75–95 %) when it was applied to drinking and environmental water samples (river, well, tap, irrigation, spring, and sea waters).

Keywords

Azoxystrobin Chlorothalonil Gold nanoparticles Polymer-based material Solid-phase extraction HPLC-DAD 

Notes

Acknowledgments

This work was supported by project CTQ2014-52765-R (Ministerio de Economía y Competitividad (MINECO) of Spain and Fondo Europeo de Desarrollo Regional (FEDER)) and PROMETEO/2016/145 (Conselleria de Educación, Investigación, Cultura y Deporte, Generalitat Valenciana, Spain).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Supplementary material

216_2016_9993_MOESM1_ESM.pdf (23 kb)
ESM 1 (PDF 23 kb)

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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Mónica Catalá-Icardo
    • 1
    Email author
  • Carmen Gómez-Benito
    • 1
  • Ernesto Francisco Simó-Alfonso
    • 2
  • José Manuel Herrero-Martínez
    • 2
    Email author
  1. 1.Research Institute for Integrated Management of Coastal AreasUniversitat Politècnica de ValènciaGrao de GandíaSpain
  2. 2.Department of Analytical ChemistryUniversitat de ValènciaBurjassotSpain

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