Accurate oxygen monitoring made possible with optodes

To measure oxygen optically, with so called optodes, is today an established technique in aquatic science and monitoring. Since this technology was made commercially available almost three years ago it has proven itself through numerous applications. The accuracy and precision is comparable to Winkler titrations(Winkler L.W (1888) the overall standard in measuring dissolved oxygen since 1888) and the sensors are stable for years. Because of the high accuracy, the long term stability, a low sensitivity to fouling and a low and predictable pressure behavior this technology has opened new possibilities in aquatic science and monitoring. A further development of this technique can also be used to asses oxygen distributions in two dimensions at the sediments-water interface.