APPLICATION OF ELECTROANALYTICAL TECHNIQUES IN MONITORING METAL-IONS POLLUTION IN WATER - A REVIEW

Electroanalytical techniques are known for their application to determ ination of metal ions at low concentrations. Determination of toxic me tals in water using these techniques is described. It is pointed out t hat these techniques could be used successfully for the determination of metals individually as well as for their simultaneous determination s. In the latter category, determination of cobalt, lead and copper in the presence of a variety of metals/metal ions is described. A table containing data regarding determination of lead, copper, cadmium, zinc , nickel, cobalt, iron, mercury, vanadium, titanium, chromium, mangane se, molybdenum, gallium, tantalum, aluminium, tin, arsenic. antimony, bismuth, selenium and platinum metals is given to select the method th at could be used for determining a particular metal.