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RECORD NUMBER: 50 OF 104

OLS Field Name OLS Field Data
Main Title Heavy Metal Ion Interaction and Transport With Synthetic Complexing Agents and Detergent Phosphate Substitutes in Aquatic Systems.
Author Manaha, Stanley E. ; Smit, Michael J. ;
CORP Author Missouri Water Resources Research Center, Rolla.
Year Published 1972
Report Number DI-14-01-0001-3525; OWRR-A-049-MO; 02112,; A-049-MO(1)
Stock Number PB-213 252
Additional Subjects ( Detergents ; Water pollution) ; ( Algae ; Nutrients) ; ( Water pollution ; Copper) ; ( Water analysis ; Copper) ; EDTA ; Chelation ; Trace elements ; Chlorella ; Electrodes ; Buffers(Chemistry) ; Calibration ; Least squares method ; Computer programs ; Potentiometric analysis ; FORTRAN ; Ion selective electrodes ; Chlorella vulgaris ; Oocystis marssonii ; Water pollution effects(Plants) ; Algae growth ; Water pollution detection ; PCTPLT computer program ; FORTRAN 4 programming language
Holdings
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Status
NTIS  PB-213 252 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 198p
Abstract
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 46 mg copper. When only sufficient chelating agent was present to keep the iron (III) in solution, however, the toxic effects of copper were evident at 7.00 mg 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.