Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/66197
Título: | Environmentally-friendly technology for rapid identification and quantification of emerging pollutants from wastewater using infrared spectroscopy |
Autor(es): | Quintelas, Cristina Melo, A. R. B. Costa, Mariana Mesquita, D. P. Ferreira, Eugénio C. Amaral, A. Luís |
Palavras-chave: | FTIR spectroscopy Emerging pollutants kNN PLS OLS |
Data: | Nov-2020 |
Editora: | Elsevier 1 |
Revista: | Environmental Toxicology and Pharmacology |
Citação: | Quintelas, Cristina; Melo, A. R. B.; Costa, Mariana; Mesquita, Daniela P.; Ferreira, Eugénio C.; Amaral, A. Luís, Environmentally-friendly technology for rapid identification and quantification of emerging pollutants from wastewater using infrared spectroscopy. Environmental Toxicology and Pharmacology, 80(103458), 2020 |
Resumo(s): | The monitoring of emerging pollutants in wastewaters is nowadays an issue of special concern, with the classical quantification methods being time and reagent consuming. In this sense, a FTIR transmission spectroscopy based chemometric methodology was developed for the determination of eight of these pollutants. A total of 456 samples were, therefore, obtained, from an activated sludge wastewater treatment process spiked with the studied pollutants, and analysed in the range of 200cm1 to 14,000cm1. Then, a k-nearest neighbour (kNN) analysis aiming at identifying each sample pollutant was employed. Next, partial least squares (PLS) and ordinary least squares (OLS) modelling approaches were employed in order to obtain suitable prediction models. This procedure resulted in good prediction abilities regarding the estimation of atrazine, desloratadine, paracetamol, -estradiol, ibuprofen, carbamazepine, sulfamethoxazole and ethynylestradiol concentrations in wastewaters. These promising results suggest this technology as a fast, eco-friendly and reagent free alternative methodology for the quantification of emerging pollutants in wastewaters. |
Tipo: | Artigo |
Descrição: | Supplementary material related to this article can be found, in theonline version, at doi:https://doi.org/10.1016/j.etap.2020.103458. |
URI: | https://hdl.handle.net/1822/66197 |
DOI: | 10.1016/j.etap.2020.103458 |
ISSN: | 1382-6689 |
Versão da editora: | https://www.sciencedirect.com/journal/environmental-toxicology-and-pharmacology |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_53829_1.pdf | 757,42 kB | Adobe PDF | Ver/Abrir |