Determination of Trace Lead in Water by Anodic Stripping Voltammetry using Dry Olive Leaves Powder by Modified Carbon Paste Electrode

Abstract

Preparation and application of electrochemical sensor, to investigate and determine heavy metals ions in environment is an important issue.

A novel carbon paste electrode modified with powder dried olive leaves was prepared to Quantify Pb(II) in water. FTIR spectra of olive leaves powder, with and without Pb(II) were obtained as a method of identification of function groups present in modified electrode that make it responds towards Pb(II) and others. Briefly the method consists  of two steps: accumulation of Pb(II) in the first step on electrode surface at open circuit voltage (OCV) then Pb could be determined by anodic oxidation stripping voltammetry  electrochemical step. To be used to characterize the modified carbon past electrode (MCPE), and study most effective conditions of its functionality: ratio of modified in the electrode, accumulation time, pH of accumulation medium, stripping medium, and stripping current vs. concentration.

 Method was applied with increasing concentration to derive calibration curve of Pb(II) together with various analysis parameters.

This work is a green environmentally friendly method to determine trace Pb(II) in water, utilizing modified carbon paste electrode via electrochemical ultra-highly sensitive technique.