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Characterization of dissolved organic matter from saline soils by fluorescence spectroscopy

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Abstract

In this paper hydrophilic (HI) and hydrophobic (HO) fractions of dissolved organic matter (DOM) extracted from soils at different degrees of salinisation were characterised by means of fluorescence spectroscopy in the emission, excitation and synchronous-scan modes. Results provided evidence of the different chemical nature of DOM fractions and allowed to distinguish hydrophilic and hydrophobic fractions extracted from the same soil substrate. The strong decrease in fluorescence intensity observed with the increasing salinity of the soils can be utilised to obtain information on the salinity level of different soil substrates by comparison of spectral fluorescence intensities.

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Authors and Affiliations

  1. Dipartimento di Biologia e Chimica Agroforestale e Ambientale, University of Bari, Via Amendola 165/a, 70126, Bari, Italy

    Antonella Cilenti, Maria Rosaria Provenzano & Nicola Senesi

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  1. Antonella Cilenti
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  2. Maria Rosaria Provenzano
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  3. Nicola Senesi
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Correspondence to Maria Rosaria Provenzano.

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Cilenti, A., Provenzano, M.R. & Senesi, N. Characterization of dissolved organic matter from saline soils by fluorescence spectroscopy. Environ Chem Lett 3, 53–56 (2005). https://doi.org/10.1007/s10311-005-0001-6

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  • DOI: https://doi.org/10.1007/s10311-005-0001-6

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