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Fluorescent clays — Similar transfer with sensitive detection / Vitaly Gitis in Chemical engineering journal, Vol. 174 N° 1 (Octobre 2011) 

Public ISBD [article]  in Chemical engineering journal > Vol. 174 N° 1 (Octobre 2011) . - pp.482–488 Titre : Fluorescent clays — Similar transfer with sensitive detection Type de document : texte imprimé Auteurs : Vitaly Gitis, Auteur ; Christina Dlugy, Auteur ; Gennady Ziskind, Auteur Année de publication : 2012 Article en page(s) : pp.482–488 Note générale : Génie chimique Langues : Anglais (eng) Mots-clés : MMT  Rhodamine  6G  Subsoil  Residence  time  distribution  Turbidity Résumé : The significant probe dilution is one of the reasons to use soluble dyes and concentrated ion solutions for studies of colloid transport in subsoils and aquifers. We studied the clay transport in sand columns with Rhodamine 6G-intercalated montmorillonite (MMT). Our MMT-R exhibited transfer properties similar to the non-dyed clays but was detectable starting from 1 ppb by fluorescence and only from 0.5 ppm by turbidity. More contaminated soil adsorbed the MMT-R better than the pure one and therefore the reduction of influent turbidity may have the unintended effect of decreasing soil adsorption capacity. ISSN : 1385-8947 En ligne : http://www.sciencedirect.com/science/article/pii/S1385894711010217# [article] Fluorescent clays — Similar transfer with sensitive detection [texte imprimé] / Vitaly Gitis, Auteur ; Christina Dlugy, Auteur ; Gennady Ziskind, Auteur . - 2012 . - pp.482–488. Génie chimique Langues : Anglais (eng) in Chemical engineering journal > Vol. 174 N° 1 (Octobre 2011) . - pp.482–488 Mots-clés : MMT  Rhodamine  6G  Subsoil  Residence  time  distribution  Turbidity Résumé : The significant probe dilution is one of the reasons to use soluble dyes and concentrated ion solutions for studies of colloid transport in subsoils and aquifers. We studied the clay transport in sand columns with Rhodamine 6G-intercalated montmorillonite (MMT). Our MMT-R exhibited transfer properties similar to the non-dyed clays but was detectable starting from 1 ppb by fluorescence and only from 0.5 ppm by turbidity. More contaminated soil adsorbed the MMT-R better than the pure one and therefore the reduction of influent turbidity may have the unintended effect of decreasing soil adsorption capacity. ISSN : 1385-8947 En ligne : http://www.sciencedirect.com/science/article/pii/S1385894711010217#