Extracting Samples from Mississippi River (IMAGE) University of Minnesota Caption University of Minnesota researchers extract sediment samples from Lake Pepin at the Mississippi River in southeastern Minnesota to test for specific dioxins derived from the antibacterial agent triclosan, used in many hand soaps, deodorants, dishwashing liquids and other consumer products. Credit University of Minnesota Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.