supported by the National Basic Research Program of China "Water Environmental Quality Evolution and Water Quality Criteria in Lakes" (No.2008CB418201);the National Natural Science Foundation of China (No. 40871215);the Natural Science Foundation of Beijing (No. 8092019)
The biokinetics of Cu in Daphnia magna, including dissolved uptake, assimilation and efflux, has been determined using a gamma 67^Cu radiotracer methodology. However, this gamma emitting radioisotope is not readily av...