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Polythiophene–Chitosan Magnetic Nanocomposite as a Novel Sorbent for Disperse Magnetic Solid Phase Extraction of Triazine Herbicides in Aquatic Media

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A Correction to this article was published on 07 August 2018

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Abstract

In this paper, polythiophene/chitosan magnetic nanocomposite as a novel adsorbent is proposed for the preconcentration of triazines in aqueous samples prior to gas chromatography. The synthesized nanoparticles, magnetic chitosan and polythiophene–chitosan magnetic nanocomposite were characterized by scanning electron microscopy. The magnetic polythiophene–chitosan nanocomposite containing analytes could be removed from the sample solution by applying a permanent magnet. The major factors influencing the extraction efficiency including desorption conditions, nanocomposite components ratio, sorbent amount, extraction time, ionic strength and sample pH were optimized. The developed method proved to be rather convenient and offers sufficient sensitivity and good reproducibility. The limit of detection (S/N = 3) and limit of quantification (S/N = 10) of the method under optimized conditions were 10–30 and 100 ng L−1, respectively. Under the optimum conditions, good linearity was obtained within the range of 100–5000 ng L−1 for all triazines with correlation coefficients >0.9994. The relative standard deviation at a concentration level of 150 ng L−1 was 7–12 %. Furthermore, the method was successfully applied to the determination of triazines in real samples, where relative recovery percentages of 96–102 % were obtained. Compared with other methods, the current method is characterized by easy, fast separation and low detection limits.

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  • 07 August 2018

    The authors would like to call the reader’s attention to the fact that unfortunately the order of authors’ names was wrong in the original publication.

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Acknowledgments

The Research Council and Graduates School of Islamic Azad University Central Tehran Branch are acknowledged for supporting the project.

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Authors and Affiliations

  1. Analytical Chemistry Laboratories, Department of Chemistry, Islamic Azad University, Central Tehran branch, Tehran, Iran

    Alireza Feizbakhsh & Shokooh Ehteshami

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  1. Alireza Feizbakhsh
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  2. Shokooh Ehteshami
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Correspondence to Alireza Feizbakhsh.

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Feizbakhsh, A., Ehteshami, S. Polythiophene–Chitosan Magnetic Nanocomposite as a Novel Sorbent for Disperse Magnetic Solid Phase Extraction of Triazine Herbicides in Aquatic Media. Chromatographia 79, 1177–1185 (2016). https://doi.org/10.1007/s10337-016-3134-9

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  • DOI: https://doi.org/10.1007/s10337-016-3134-9

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