Ultraviolet absorption of contaminants in water

Abstract Contaminants in water were studied using ultraviolet absorption with light emitting diode and deuterium lamp sources, and a thresholding detector. The absorption spectra of potassium hydrogen pthalate, clothianidin, tryptophan, thiamethoxam, uric acid and metaldehyde were obtained in the ra...

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Autores principales: Martin Spangenberg, James I. Bryant, Sam J. Gibson, Philip J. Mousley, Yorck Ramachers, Gavin R. Bell
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Lenguaje:EN
Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/e5023d284c3e468cb6047d6c1082dae4
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spelling oai:doaj.org-article:e5023d284c3e468cb6047d6c1082dae42021-12-02T14:11:30ZUltraviolet absorption of contaminants in water10.1038/s41598-021-83322-w2045-2322https://doaj.org/article/e5023d284c3e468cb6047d6c1082dae42021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-83322-whttps://doaj.org/toc/2045-2322Abstract Contaminants in water were studied using ultraviolet absorption with light emitting diode and deuterium lamp sources, and a thresholding detector. The absorption spectra of potassium hydrogen pthalate, clothianidin, tryptophan, thiamethoxam, uric acid and metaldehyde were obtained in the range 200–360 nm. Only metaldehyde was not suitable for detection in this range. For the other contaminants, and mixtures of pairs of compounds, the transmitted signal could be approximately described with a simple spectral model of the source–absorption–detector system. Combined measurements at two wavelengths could allow relative concentrations in certain mixtures to be determined, and real-time absorption measurements were demonstrated in a flume.Martin SpangenbergJames I. BryantSam J. GibsonPhilip J. MousleyYorck RamachersGavin R. BellNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Martin Spangenberg
James I. Bryant
Sam J. Gibson
Philip J. Mousley
Yorck Ramachers
Gavin R. Bell
Ultraviolet absorption of contaminants in water
description Abstract Contaminants in water were studied using ultraviolet absorption with light emitting diode and deuterium lamp sources, and a thresholding detector. The absorption spectra of potassium hydrogen pthalate, clothianidin, tryptophan, thiamethoxam, uric acid and metaldehyde were obtained in the range 200–360 nm. Only metaldehyde was not suitable for detection in this range. For the other contaminants, and mixtures of pairs of compounds, the transmitted signal could be approximately described with a simple spectral model of the source–absorption–detector system. Combined measurements at two wavelengths could allow relative concentrations in certain mixtures to be determined, and real-time absorption measurements were demonstrated in a flume.
format article
author Martin Spangenberg
James I. Bryant
Sam J. Gibson
Philip J. Mousley
Yorck Ramachers
Gavin R. Bell
author_facet Martin Spangenberg
James I. Bryant
Sam J. Gibson
Philip J. Mousley
Yorck Ramachers
Gavin R. Bell
author_sort Martin Spangenberg
title Ultraviolet absorption of contaminants in water
title_short Ultraviolet absorption of contaminants in water
title_full Ultraviolet absorption of contaminants in water
title_fullStr Ultraviolet absorption of contaminants in water
title_full_unstemmed Ultraviolet absorption of contaminants in water
title_sort ultraviolet absorption of contaminants in water
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/e5023d284c3e468cb6047d6c1082dae4
work_keys_str_mv AT martinspangenberg ultravioletabsorptionofcontaminantsinwater
AT jamesibryant ultravioletabsorptionofcontaminantsinwater
AT samjgibson ultravioletabsorptionofcontaminantsinwater
AT philipjmousley ultravioletabsorptionofcontaminantsinwater
AT yorckramachers ultravioletabsorptionofcontaminantsinwater
AT gavinrbell ultravioletabsorptionofcontaminantsinwater
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