In Search of H2S (IMAGE) University of Oregon Caption Doctoral student Leticia A. Montoya and Michael Pluth, professor of chemistry, of the University of Oregon have developed a sensitive probe that detects H2S in biological samples and in the environment. Credit University of Oregon 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.