Author(s)

Zheng Wei, Hou Fang

Corresponding Author

Zheng Wei

Abstract

Water contains a large number of inorganic metal compounds, which generally exist in the form of metal ions. Especially when the concentration of metal ions in water exceeds a certain value, its toxicity is greater. Its toxicity is related to metal species, physical and chemical properties, concentration, valence and metal ion morphology. Therefore, the determination of metal elements is an important part of water quality monitoring project. Due to the different toxicity of different metal ions, it is necessary to determine the total amount of heavy metals in water. Monitoring of metal compounds focuses on toxic metal ions such as mercury, cadmium, chromium, lead, copper and zinc. Common monitoring methods include spectrophotometry, atomic absorption spectrometry, polarography and titration.

Keywords

Heavy metals; water quality; detection