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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2021

Autores

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

Revista

Título: Scientific Reports

Vol. 11

Páginas: 1-12

ISSN: 2045-2322

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Projetos Associados

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

LA LSRE-LCM - Financiamento Plurianual 2020-2023 para a Unidade LA LSRE-LCM Laboratório de Processos de Separação e Reacção - Laboratório de Catálise e Materiais

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 12