Skip to Main content Skip to Navigation
Theses

Étude des interactions du Benzo(a)pyrène avec les trois fractions physiques de la matière organique du sol par matrices d'excitation et d'émission de fluorescence couplées à PARAFAC

Abstract : The spectral properties of the fluorescent components of the organic matter of a natural soil were studied in the three physical fractions; humic substances, fulvic acid and humic acid, by the method of the excitation and fluorescence emission matrices coupled to the Parallel Factor Analysis (PARAFAC) algorithm. The spectral modifications of these components were studied (form and pseudo-concentrations) in the presence of a polycyclic aromatic hydrocarbon contaminant (benzo (a) pyrene (BaP), toxic and carcinogenic): (1) by varying the volumes of a pure solution of BaP in each fraction having the same concentration of organic matter, (2) by varying the concentrations of organic matter for fixed concentrations of BaP, which were followed over time. The results showed that the BaP influences the fluorophores present in the three fractions in a different way and clarified the type of interactions with one fraction or the other. On the other hand, a discussion was held on parameters for validating the number of components for the selection of PARAFAC models.
Document type :
Theses
Complete list of metadatas

Cited literature [202 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-01684218
Contributor : Abes Star :  Contact
Submitted on : Monday, January 15, 2018 - 12:14:28 PM
Last modification on : Monday, August 26, 2019 - 9:52:07 AM
Long-term archiving on: : Saturday, May 5, 2018 - 8:11:03 PM

File

These_Rawa_ELF.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-01684218, version 1

Collections

Citation

Rawa El Fallah. Étude des interactions du Benzo(a)pyrène avec les trois fractions physiques de la matière organique du sol par matrices d'excitation et d'émission de fluorescence couplées à PARAFAC. Sciences agricoles. Université de Perpignan, 2017. Français. ⟨NNT : 2017PERP0034⟩. ⟨tel-01684218⟩

Share

Metrics

Record views

416

Files downloads

1165