INFLUENCE OF ZWITTERIONIC pH BUFFERS ON THE BIOAVAILABILITY AND TOXICITY OF COPPER TO THE ALGA AMPHIDINIUM CARTERAE

摘要

The culture and testing of algae frequently requires stabilization of pH levels to maintain the availability of trace metals. In this work we evaluated the influence of 25×10~-3 M N-［2-hydroxyethyl］piperazine-N'-［hydroxypropanesulfonic acid］ (HEPPSO)and piperazine-N, N'-bis［2-hydroxypropanesulfonic acid］(POPSO)pH buffers, at pH 8.0, on the biological response of Amphidinium carterae Hulburt.