In situ characterization of organo-modified and unmodified montmorillonite aqueous suspensions by UV-visible spectroscopy.UV-visible (UV-Vis) spectroscopy (Tyndall spectra) was applied and tested for its ability to measure organo-modified and unmodified montmorillonite (MMT) clays in aqueous suspensions. 
UV-visible spectroscopy
In situ characterization of organo-modified and unmodified montmorillonite aqueous suspensions by UV-visible spectroscopy.UV-visible (UV-Vis) spectroscopy (Tyndall spectra) was applied and tested for its ability to measure organo-modified and unmodified montmorillonite (MMT) clays in aqueous suspensions. 
Tyndall spectra