Mass Spectrometer in Bayreuth (IMAGE) Universität Bayreuth Caption Prof. Dr. Britta Planer-Friedrich, Dr. Carolin Kerl, and Jiajia Wang M.Sc. (from left to right) in front of the mass spectrometer in Bayreuth, which was used to detect thioarsenates in rice soils. Credit Photo: José Miguel Leon Ninin. 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.