Ultraviolet absorption of contaminants in water.

Spangenberg, Martin; Bryant, James I; Gibson, Sam J; Mousley, Philip J; Ramachers, Yorck; Bell, Gavin R

Spangenberg, Martin; Bryant, James I; Gibson, Sam J; Mousley, Philip J; Ramachers, Yorck; Bell, Gavin R.

Afiliación

Spangenberg M; Department of Physics, University of Warwick, Coventry, CV4 7AL, UK.
Bryant JI; Department of Physics, University of Warwick, Coventry, CV4 7AL, UK.
Gibson SJ; Department of Physics, University of Warwick, Coventry, CV4 7AL, UK.
Mousley PJ; Centre for Engineering Photonics, Cranfield University, Cranfield, MK43 0AL, UK.
Ramachers Y; Department of Physics, University of Warwick, Coventry, CV4 7AL, UK.
Bell GR; Diamond Light Source, Harwell, OX11 0DE, UK.

Sci Rep ; 11(1): 3682, 2021 02 11.

Article en En | MEDLINE | ID: mdl-33574493

RESUMEN

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.

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Rep Año: 2021 Tipo del documento: Article Pais de publicación: Reino Unido

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