Fluorescent clays-Similar transfer with sensitive detection

Vitaly Gitis*, Christina Dlugy, Gennady Ziskind, Sergey Sladkevich, Ovadia Lev

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


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.

Original languageAmerican English
Pages (from-to)482-488
Number of pages7
JournalChemical Engineering Journal
Issue number1
StatePublished - 15 Oct 2011

Bibliographical note

Funding Information:
This research was supported by The Israel Science Foundation (grant no. 1184/06 ).


  • MMT
  • Residence time distribution
  • Rhodamine 6G
  • Subsoil
  • Turbidity


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