Carbon xerogels combined with nanotubes as solid-phase extraction sorbent to determine metaflumizone and seven other surface and drinking water micropollutants

• Type: Article in International Scientific Journal
• Date: 2021

Authors

Marta O. Barbosa (Author) FEUP; Rui S. Ribeiro (Author) FEUP; Ana R. L. Ribeiro (Author) FEUP; Manuel Fernando R. Pereira (Author) FEUP; Adrián M.T. Silva (Author) FEUP

Journal

Title: Scientific Reports

Vol. 11

Pages: 1-12

ISSN: 2045-2322

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Associated Projects

SAMPREP - Novas técnicas miniaturizadas de preparação de amostra para determinação de micropoluentes em matrizes ambientais

Healthy Waters - Healthy Waters - Identification, Elimination, Social Awareness and Education of Water Chemical and Biological Micropollutants with Health and Environmental Implications

InSpeCt - Identifying and interrupting micropollutants of EU concern by using Smart Carbon materials

Other information

Authenticus ID: P-00V-618

DOI: 10.1038/s41598-021-93163-2

Abstract (EN): Carbon xerogels (CXs) were synthesized by polycondensation of resorcinol and formaldehyde, followed by thermal annealing, and subjected to hydrothermal oxidation. Solid-phase extraction (SPE) cartridges were filled with CXs and tested for extraction of metaflumizone and other seven environmental micropollutants (acetamiprid, atrazine, isoproturon, methiocarb, carbamazepine, diclofenac, and perfluorooctanesulfonic acid) before chromatographic analysis. The recoveries obtained with the pristine CX were low for most analytes, except for metaflumizone (69 +/- 5%). Moreover, it was concluded that the adsorption/desorption process of the micropollutants performed better on CXs with a less acidic surface (i.e., pristine CX). Thus, cartridges were prepared with pristine CX and multi-walled carbon nanotubes (MWCNTs) in a multi-layer configuration. This reusable cartridge was able to simultaneously extract the eight micropollutants and was used to validate an analytical methodology based on SPE followed by ultra-high performance liquid chromatography-tandem mass spectrometry. A widespread occurrence of 6/8 target compounds was observed in surface water collected in rivers supplying three drinking water treatment plants and in the resulting drinking water at the endpoint of each distribution system. Therefore, the first study employing CXs and MWCNTs as sorbent in multi-layer SPE cartridges is herein reported as a proof of concept for determination of multi-class water micropollutants.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 12