Record Display for the EPA National Library Catalog

RECORD NUMBER: 139 OF 2557

OLS Field Name OLS Field Data
Main Title Application of a New Method for Phosphate Concentration Measurements in Natural and Waste Waters.
Author Hube, Calvin O. ; Karwei, Dale ; Rei, Robert E. ;
CORP Author Wisconsin Univ., Madison. Water Resources Center.
Year Published 1973
Report Number WIS-WRC-73-12; DI-14-31-0001-3550 ;DI-14-31-0001-3850; OWRR-A-044-WIS; 03900,; A-044-WIS(2)
Stock Number PB-227 456
Additional Subjects Water analysis ; Inorganic phosphates ; Electrodes ; Water pollution ; Cathodes ; Lead phosphates ; Lead oxides ; Chemical analysis ; Sodium phosphates ; Reaction kinetics ; Pyrophosphates
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NTIS  PB-227 456 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 41p
Abstract
The cathodic response of the lead dioxide electrode to polyphosphate species examined. Fabrication and response of various forms of the electrode were investigated. Maximum sensitivity is obtained with an electroplated electrode, but overall convenience and utility indicate the paraffin wax-bound electrode as the device of choice. Scanning electron microscopy showed that the electrode surface consists of approximately 0.001 mm particles protruding from the paraffin 'floor'. Measurements of various polyphosphate solutions are reported. In addition, the measurement system was successfully applied to hydrolysis rate and metal complex stability evaluations. The electrode reaction provides a new and useful analytical tool for polyphosphate concentrations in water chemistry and water monitoring. The fact that the new method is specific for polyphosphates in the presence of orthophosphate suggests that it should be applicable to many water investigations.