Chemistry majors Megan Brown and Pa Xiong will present this week’s Chemistry Seminar.

Brown will discuss “Simultaneous Preconcentration of a Wide Variety of Organic Pollutants in Water Samples: Comparison of Stir Bar Sorptive Extraction and Membrane-Assisted Solvent Extraction.” Xiong will discuss “Ceramic Carbon Electrodes: Implications for the Copper-Chlorine Cycle.”

The seminar will be held at 2:55 p.m. Friday, March 12, in Room 251, Owens Science Hall.

Everyone is invited to attend.