Determination of Three Metal Ions (Cu2+, Pb2+, Cd2+) by Ultraviolet-visible Spectroscopy

Abstract The objective of this article review is the determination of the concentration or amount of trace metal ions using Ultraviolet-visible spectrophotometry. The maximum absorption wavelength (λ-max) of the three metallic ions (Cu+2, Pb+2, and Cd+2) that I have highlighted are equivalent to (755 nm, 100-380 nm, and 323.9 nm) when they are alone, However, when these metal ions interact with a reagent, the λ-max of each metal ion differs. Ultraviolet-visible (UV-Vis) spectrophotometry is deemed an efficient method for both qualitative and quantitative analysis of pollutants in a water environment. This succinct statement outlines the focus of the article review, emphasizing the application of UV-Vis spectrophotometry for analyzing trace metal ions in water samples. Also, the analytical technique measures the amount of single-color lighting absorbed via a colorless substance in the close ultraviolet light region of a range (between 200 and 400 nm). The process required to ascertain the “identity, strength, quality and purity” of such chemicals is included in the pharmaceutical analysis. Using calibration curves and absorption band correlation with certain ions to find concentration metal ion or analyte in the sample. A bibliometric analysis classifies the top 10,000 cited UV-Vis papers (2016-2017) into four clusters: nanoparticles, photocatalysis, crystals, and biological interaction of Ag and Au nanoparticles.