Abstract
Waste materials like fruit and vegetable refuses were utilized as component of sensors capable of detecting heavy metals like lead ions and mercury ions by electrochemical method. The ability of the fabricated sensors to detect the presence of heavy metals was analyzed using electrochemical methods like cyclic voltammetry and differential pulse anodic stripping voltammetry. Results showed that the fabricated electrode were able to detect the presence of mercury and lead ions in aqueous solutions
Highlights
An alternative method for the detection of these metals is the use of chemically modified carbon paste electrodes (CMCPE)
Sensors were fabricated utilizing these waste materials and their performances were characterized by electrochemical method in terms of cyclic voltammetry (CV) and differential pulse anodic stripping voltammetry (DPASV)
CV offers a rapid location of redox potentials of the electroactive species, and convenient evaluation of the effect of media upon the redox process (Wang 2000)
Summary
An alternative method for the detection of these metals is the use of chemically modified carbon paste electrodes (CMCPE). Plant parts which are of no economical use contain the materials responsible for the binding of heavy metals. Pineapple peelings were successfully used as a modifier of a voltammetric sensor for lead ions (Mojica et al 2006).
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