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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Nature Portfolio
2021
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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) |
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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 |
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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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