| Abstrakt: |
Responses of Selenastrum capricornutum to cadmium in a chemostat areevaluated under various test conditions defined by the nitrogen to phosphorus ratio, phosphate strength, dilution rate, and ethylenediaminetetraacetic acid content. Based on the test results, these parameters were optimized to achieve superior test sensitivity. This continuous system was also modified to allow testing on a weekly basis, The performance of the modified testing technique was evaluated, employingsix different metal toxicants. Compared with batch test results reported by other researchers and our own experiment, the continuous testachieved superior sensitivities and reproducibility. The test methodpresented in this study is believed to be an ideal technique both for research and regulatory purposes. [ABSTRACT FROM AUTHOR] |
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