Consulta: creatorFacets:"Thibault, Aubin"
Registros recuperados: 2
Data/hora: 20/05/2024 09:01:14

Evolution temporelle du comportement estuarien du mercure: cas de l'estuaire de la Loire
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Knoery, Joel; Brach Papa, Christophe; Thomas, Bastien; Auger, Dominique; Chouvelon, Tiphaine; Crochet, Sylvette; Rozuel, Emmanuelle; Sanjuan, Jane; Thibault, Aubin; Chiffoleau, Jean-francois.
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00212/32356/30812.pdf

Simultaneous nitrite/nitrate imagery at millimeter scale through the water-sediment interface
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Metzger, E.; Thibault, Aubin; Cesbron, F.; Barbe, A.; Launeau, P.; Jezequel, D.; Mouret, A.
The present study describes new procedures to obtain at millimeter resolution the spatial distribution of nitrite and nitrate in porewaters, combining diffusive equilibrium in thin films (DET), colorimetry and hyperspectral imagery. Nitrite distribution can be easily achieved by adapting the well-known colorimetric method from Griess (1879) and using a common flatbed scanner with a limit of detection about 1.7 µmol L-1. Nitrate distribution can be obtained after reduction into nitrite by a vanadium chloride reagent. However, the concentration of vanadium chloride used in this protocol brings coloration with a wide spectral signature that creates interference only deconvolvable by imaging treatment from an entire visible spectrum for each pixel (spectral...
Tipo: Text
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00344/45510/45064.pdf