Jump to main content
Jump to site search

Issue 24, 2018
Previous Article Next Article

Polypyrrole-modified magnetic multi-walled carbon nanotube-based magnetic solid-phase extraction combined with dispersive liquid–liquid microextraction followed by UHPLC-MS/MS for the analysis of sulfonamides in environmental water samples

Author affiliations

Abstract

A sensitive and accurate analytical method, magnetic solid-phase extraction combined with dispersive liquid–liquid microextraction followed by ultra-high performance liquid chromatography-tandem mass spectrometry, was established for the simultaneous quantification of eight sulfonamide antibiotics in environmental water samples. In this study, a magnetic nanocomposite, polypyrrole-modified magnetic multi-walled carbon nanotubes, was prepared, characterized and applied as an efficient adsorbent for magnetic solid-phase extraction. The synthetic material exhibited satisfactory adsorption capacity for sulfonamides. Moreover, the sample pretreatment-combined technology of magnetic solid-phase extraction and dispersive liquid–liquid microextraction exhibited better purification ability than only magnetic solid-phase extraction. Furthermore, the various extraction parameters affecting the extraction efficiency were thoroughly optimized. Under the optimized conditions, high sensitivity was achieved with method detection limits in the range of 1.02–2.97 ng L−1 and method quantitation limits in the range of 3.05–9.89 ng L−1. The recovery of eight sulfonamides in five environmental water samples was in the range of 78.3–95.6% and the relative standard deviations were no more than 8.5%. Finally, the method was successfully applied to the analysis of sulfonamides in real environmental water samples (river water, lake water, influent wastewater, effluent wastewater and farm wastewater). Accordingly, the newly established method is reliable for monitoring sulfonamide residues in complex environmental matrices, which has great significance for evaluating the effects of sulfonamide residues on humans and the ecosystem.

Graphical abstract: Polypyrrole-modified magnetic multi-walled carbon nanotube-based magnetic solid-phase extraction combined with dispersive liquid–liquid microextraction followed by UHPLC-MS/MS for the analysis of sulfonamides in environmental water samples

Back to tab navigation

Article information


Submitted
27 Sep 2018
Accepted
30 Oct 2018
First published
02 Nov 2018

New J. Chem., 2018,42, 19578-19590
Article type
Paper

Polypyrrole-modified magnetic multi-walled carbon nanotube-based magnetic solid-phase extraction combined with dispersive liquid–liquid microextraction followed by UHPLC-MS/MS for the analysis of sulfonamides in environmental water samples

X. Yuan, D. Wu, C. Liu, X. Li, Z. Xiong and L. Zhao, New J. Chem., 2018, 42, 19578 DOI: 10.1039/C8NJ04911D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements