Robotitrator (IMAGE) Geological Society of America Caption Robotitrator that is used to measure alkalinity of the water. Image courtesy of Hannah Hensel. Credit Hannah Hensel Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. License CC BY-NC 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.