Determination of zinc, cadmium, lead, and copper in water by anodic stripping voltammetry

Technical Report · Mon May 01 04:00:00 EDT 1978

OSTI ID:5642446

Howe, L H; Jones, I E

The Tennessee Valley Authority developed a method of differential pulse anodic stripping voltammetry for determining total concentrations of cadmium and lead in water samples from ash ponds at steam-electric generating plants. After digestion of the sample and addition of reagents to overcome interferences by iron (III) and selenium (IV), the peak current for cadmium and lead is measured and quantified by standard addition. The effective range for this method is 0.3 to 100 microgram/l of cadmium and 3 to 100 microgram/l of lead. This method gives suitable accuracy for cadmium and lead in reference water samples and in split samples of effluent water from ash ponds that were analyzed by atomic absorption. Limited data show that this method probably also can be used for 5 to 100 microgram/l copper but that it is unsuitable for zinc because of a 15-microgram/l sample blank.

• Research Organization: Tennessee Valley Authority, Chattanooga (USA). Div. of Environmental Planning
• OSTI ID: 5642446
• Report Number(s): PB-290968
• Country of Publication: United States
• Language: English

Related Subjects

520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
CADMIUM
CHEMICAL ANALYSIS
COPPER
ELEMENTS
HYDROGEN COMPOUNDS
LABORATORY EQUIPMENT
LEAD
METALS
OXYGEN COMPOUNDS
POLLUTION
POWER PLANTS
THERMAL POWER PLANTS
TRANSITION ELEMENTS
VOLTAMETRY
WATER
WATER POLLUTION
ZINC