The Instrument (IMAGE) University of Missouri-Columbia Caption The instrument is designed to analyze the quality of liquids using the photoacoustic effect, or the generation of sound waves after light is absorbed in a material. The MU scientists believe this might be the first use of this technology to analyze such small liquid samples. Credit University of Missouri 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.