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Quantification of natural DOM from UV absorption

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Quantification of natural DOM from UV absorption. / Tipping, Edward; Corbishley, H.T.; Koprivnjak, J.-F. et al.
In: Environmental Chemistry, Vol. 6, No. 6, 18.12.2009, p. 472-476.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Tipping, E, Corbishley, HT, Koprivnjak, J-F, Lapworth, DJ, Miller, MP, Vincent, CD & Hamilton-Taylor, J 2009, 'Quantification of natural DOM from UV absorption', Environmental Chemistry, vol. 6, no. 6, pp. 472-476. https://doi.org/10.1071/EN09090

APA

Tipping, E., Corbishley, H. T., Koprivnjak, J.-F., Lapworth, D. J., Miller, M. P., Vincent, C. D., & Hamilton-Taylor, J. (2009). Quantification of natural DOM from UV absorption. Environmental Chemistry, 6(6), 472-476. https://doi.org/10.1071/EN09090

Vancouver

Tipping E, Corbishley HT, Koprivnjak JF, Lapworth DJ, Miller MP, Vincent CD et al. Quantification of natural DOM from UV absorption. Environmental Chemistry. 2009 Dec 18;6(6):472-476. doi: 10.1071/EN09090

Author

Tipping, Edward ; Corbishley, H.T. ; Koprivnjak, J.-F. et al. / Quantification of natural DOM from UV absorption. In: Environmental Chemistry. 2009 ; Vol. 6, No. 6. pp. 472-476.

Bibtex

@article{aeb8e77f1c214971ba1c7822d083abcd,
title = "Quantification of natural DOM from UV absorption",
abstract = "The precise simulation of ultraviolet absorption by 23 contrasting surface-water DOM samples was achieved with a model based on two components, one absorbing light strongly (A) and the other weakly (B). The parameterised model can be used to predict [DOC] inwater samples simply from absorbance values at twowavelengths,while information on DOM quality is provided by the calculated fractionation into A and B. The model was tested by predicting [DOC] for a separate dataset obtained by combining results for 12 samples each from surface waters in the UK, Canada and the USA, and from UK groundwaters. A close correlation (R2 =0.997) was obtained, with only slight underestimation of the true [DOC]. The proportions of components A and B varied considerably among the sites, which explains why precise prediction of [DOC] from absorbance data at a single wavelength was not possible. When the model was applied to samples collected from river locations in a heterogeneousUKcatchment with areas of industry and high human population, [DOC] was underestimated in many cases, which may indicate the presence of non-absorbing pollutant DOM.",
keywords = "dissolved organic carbon, dissolved organic matter, two-component model, UV spectra",
author = "Edward Tipping and H.T. Corbishley and J.-F. Koprivnjak and D.J. Lapworth and M.P. Miller and C.D. Vincent and John Hamilton-Taylor",
year = "2009",
month = dec,
day = "18",
doi = "10.1071/EN09090",
language = "English",
volume = "6",
pages = "472--476",
journal = "Environmental Chemistry",
issn = "1448-2517",
publisher = "CSIRO",
number = "6",

}

RIS

TY - JOUR

T1 - Quantification of natural DOM from UV absorption

AU - Tipping, Edward

AU - Corbishley, H.T.

AU - Koprivnjak, J.-F.

AU - Lapworth, D.J.

AU - Miller, M.P.

AU - Vincent, C.D.

AU - Hamilton-Taylor, John

PY - 2009/12/18

Y1 - 2009/12/18

N2 - The precise simulation of ultraviolet absorption by 23 contrasting surface-water DOM samples was achieved with a model based on two components, one absorbing light strongly (A) and the other weakly (B). The parameterised model can be used to predict [DOC] inwater samples simply from absorbance values at twowavelengths,while information on DOM quality is provided by the calculated fractionation into A and B. The model was tested by predicting [DOC] for a separate dataset obtained by combining results for 12 samples each from surface waters in the UK, Canada and the USA, and from UK groundwaters. A close correlation (R2 =0.997) was obtained, with only slight underestimation of the true [DOC]. The proportions of components A and B varied considerably among the sites, which explains why precise prediction of [DOC] from absorbance data at a single wavelength was not possible. When the model was applied to samples collected from river locations in a heterogeneousUKcatchment with areas of industry and high human population, [DOC] was underestimated in many cases, which may indicate the presence of non-absorbing pollutant DOM.

AB - The precise simulation of ultraviolet absorption by 23 contrasting surface-water DOM samples was achieved with a model based on two components, one absorbing light strongly (A) and the other weakly (B). The parameterised model can be used to predict [DOC] inwater samples simply from absorbance values at twowavelengths,while information on DOM quality is provided by the calculated fractionation into A and B. The model was tested by predicting [DOC] for a separate dataset obtained by combining results for 12 samples each from surface waters in the UK, Canada and the USA, and from UK groundwaters. A close correlation (R2 =0.997) was obtained, with only slight underestimation of the true [DOC]. The proportions of components A and B varied considerably among the sites, which explains why precise prediction of [DOC] from absorbance data at a single wavelength was not possible. When the model was applied to samples collected from river locations in a heterogeneousUKcatchment with areas of industry and high human population, [DOC] was underestimated in many cases, which may indicate the presence of non-absorbing pollutant DOM.

KW - dissolved organic carbon

KW - dissolved organic matter

KW - two-component model

KW - UV spectra

U2 - 10.1071/EN09090

DO - 10.1071/EN09090

M3 - Journal article

VL - 6

SP - 472

EP - 476

JO - Environmental Chemistry

JF - Environmental Chemistry

SN - 1448-2517

IS - 6

ER -