Studying surface complexation states of mercury on sulfide minerals at Argonne's Advanced Photon Source. From left to right: Julia Bower (Auburn University), Kaye Savage (Vanderbilt University), and Beth Weinman (Vanderbilt University). For more information on the project, click here.
Real-time X-ray diffraction at Stanford's Synchrotron Radiation Laboratory (SSRL) provides a unique opportunity to assess the physical and chemical controls on colloidal transport. Columns filled with matrices that have different surface charges due to different points of zero charge can be monitored at various points along the column while being pumped with colloidal suspensions. The appearance and disappearance of rings in the otherwise spotted diffraction pattern provides time-resolved visual evidence for accumulation and dissipation of colloids through the matrix. This method provides a promising new approach to investigate how colloids and contaminants react with each other and the bulk properties of different matrices.
Studying surface complexation states of mercury on sulfide minerals at Argonne's Advanced Photon Source. From left to right: Julia Bower (Auburn University), Kaye Savage (Vanderbilt University), and Beth Weinman (Vanderbilt University). For more information on the project, click 
Real-time X-ray diffraction at Stanford's Synchrotron Radiation Laboratory (SSRL) provides a unique opportunity to assess the physical and chemical controls on colloidal transport. Columns filled with matrices that have different surface charges due to different points of zero charge can be monitored at various points along the column while being pumped with colloidal suspensions. The appearance and disappearance of rings in the otherwise spotted diffraction pattern provides time-resolved visual evidence for accumulation and dissipation of colloids through the matrix. This method provides a promising new approach to investigate how colloids and contaminants react with each other and the bulk properties of different matrices.