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首页> 美国政府科技报告 >Heavy Metal Ion Interaction and Transport With Synthetic Complexing Agents and Detergent Phosphate Substitutes in Aquatic Systems.
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Heavy Metal Ion Interaction and Transport With Synthetic Complexing Agents and Detergent Phosphate Substitutes in Aquatic Systems.

机译：重金属离子与水生系统中合成络合剂和洗涤剂磷酸盐替代物的相互作用和运输。

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The chemical aspects of the copper micronutrient requirement for algae have been investigated. A reproducible copper requirement for Chlorella vulgaris and Oocystis marssonii was demonstrated. A study of the effects of EDTA on the toxicity of copper to Chlorella showed that copper in chelated form was not toxic to these algae at concentrations up to 46mg copper. When only sufficient chelating agent was present to keep the iron (III) in solution,however,the toxic effects of copper were evident at 7.00mg of copper. A second aspect of the project involved the development of a simple,direct multiple standard addition method for the potentiometric analysis of copper in water with a solid-state copper ion-selective electrode. The technique is more sensitive than conventional atomic absorption analysis,though not so rapid. The method is described and a computer program for electrode calibration is given.

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