Record Display for the EPA National Library Catalog


Main Title Device for Field Determination of Heavy Metals in Natural Waters.
Author Van Att, Robert E. ;
CORP Author Illinois Univ., Urbana. Water Resources Center.
Year Published 1970
Report Number WRC-RR-35; DI-14-31-0001-3013; OWRR-A-032-ILL; 03311,; A-032-ILL(1)
Stock Number PB-196 665
Additional Subjects ( Water pollution ; Metals) ; ( Polarographic analysis ; Water pollution) ; ( Lead ; Polarographic analysis) ; ( Cadmium ; Polarographic analysis) ; ( Iron ; Polarographic analysis) ; ( Zinc ; Polarographic analysis) ; Manuals ; Field tests ; Cost estimates ; Water analysis ; Trace elements ; Electrodes ; Nonaqueous electrolytes ; Design ; Water pollution detection ; Dropping mercury electrode
Library Call Number Additional Info Location Last
NTIS  PB-196 665 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 53p
The objective of the project was the development and testing of a simple, portable, self-contained device suitable for in situ analysis of natural waters for certain trace metals. The trace metals which were of primary interest were copper, lead, cadmium, nickel, chromium and zinc. Two models of the analyzer were build during the course of this experiment. The first model utilized a rotating platinum electrode in sulfosalicylic acid electrolyte. This was abandoned due to the inconsistent quality of high sensitivity results in the field and the interference of the sulfosalicylic acid medium with analysis of lead and iron ions. The second model used a dropping mercury electrode in the same electrolytic medium. The medium was discarded due to the interference with lead and iron, but the DME was retained with tri-sodium citrate as the medium since this allows analysis of lead, cadium, zinc and iron. Details of the construction and field operation of the kit are explained in full. Field sampling techniques are also discussed. The operation of the device is relatively simple and the cost of construction of the initial model was less than $400. The results have not been compared with the results from known different tests with known reliability. (Author)