A farewell to Dr. Thomas Knacker

On October 30, 2011 we lost Dr. Thomas Knacker, managing director of ECT and a much valued and loved colleague, research partner and friend. We deeply regret the loss of an internationally honoured ecotoxicologist. A farewell, in which several colleagues and friends are expressing their sorrow, has been published […]

Activated sludge test according to updated OECD guideline 209

For the activated sludge respiration inhibition test, the updated OECD test guideline 209 (22 July 2010) requires more replicates per treatment than the former guideline. To accomplish this new requirement and process the test within a reasonable timeframe, ECT recently established a multi-channel oxygen meter that allows simultaneous measurement and processing of respiration rates in […]