References:

● Electrochemical Methods Fundamentals and Applications by Allen J. Bard and Larry R. Faulkner (https://electrochem.xmu.edu.cn/UserFiles/File/Electrochemical%20methods.%20Fundamentals%20and%20applications.pdf).
● Electrochemical Analysis of Heavy Metal Ions Using Conducting Polymer Interfaces by Gerardo Salinas, and Bernardo A. Frontana-Uribe (https://www.mdpi.com/2673-3293/3/3/34).
● Determination of Cd, Cu, Pb, and Zn content of infant formulas by differential pulse stripping voltammetry (DPASV) by M J Esteve, R Farre, and A Frigola (https://onlinelibrary.wiley.com/doi/abs/10.1002/food.19940380407).
● A review on various electrochemical techniques for heavy metal ions detection with different sensing platforms by Bansod, Kumar, Thakur, Rana, and Singh (https://www.sciencedirect.com/science/article/abs/pii/S0956566317301823).
● Google.n