Industrial waste released directly into the environment, have the presence of heavy metals. This is one of the major potential health hazards. Therefore attempted in this paper is the development of simple procedure for one of the most perilous heavy metal, lead using Screen printed electrodes(SPE). These electrodes designed and developed using, silver as Reference Electrode and carbon as Working electrode as well as Counter electrode. When these electrodes comes in contact with the solution containing lead, a small amount of voltage is developed which is sensed by measuring or potentiostat circuit and displayed using high precision measuring unit. The response of the electrodes for varying concentrations of lead, zinc and copper were studied. The result confirms the sensitivity of the developed electrode is more for lead, (in the order of 0. 1ng/ml) than the other two heavy metals. Various designs of electrodes were also used to test the lead to choose the best suited design for the proposed system. The output of this system is validated using the results obtained through inductively coupled plasma mass spectroscopy. The electrochemical cell functioning of the SPE was confirmed by performing, open circuit voltammetry and Cyclic Voltammetry analyses.

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Screen-printed electrodes(SPE) silver carbon potentiostat electrochemical.