Anodic and cathodic stripping voltammetry for metals sensing

Abstract

This chapter introduces the fundamental ideas of voltammetry, such as adjusting the voltage and measuring the current that results from electrochemical reactions. The procedure known as stripping analysis can be divided into two stages: electrolytic deposition of a part of the metal ions in solution at the working electrode is frequently employed to pre-concentrate the metals during the first step of the process, which is referred to as the deposition stage. After the pre-concentration comes to the stripping stage, also known as the measuring step. During this process, the precipitate is dissolved. The main focus of this chapter is on anodic and cathodic stripping voltammetry, both of which are used to detect metals. This chapter discusses the theory that underpins the techniques as well as the potential applications of stripping analysis for the detection of analytes in a variety of real-sample such as water, soil extracts, and biological fluids (blood and saliva) with a high degree of specificity, sensitivity (detection limits of ppb), and reliability. The chapter also covers the theory that underpins the techniques and the potential applications of stripping analysis. The analysis of water for the presence of analytes is the primary topic of this chapter. Electroanalytical methods are given a concise explanation in this chapter, along with their mode of operation and the various phenomena that can be investigated with the help of these methods. In addition, a few other applications of electrochemical sensors and a general review of these sensors are discussed.