Complexometry

Complexometry is an important analytical method in surface technology that is used to determine metal ions in solutions. This technique is based on the formation of stable metal complex compounds between metal ions and certain organic ligands, such as EDTA (ethylenediaminetetraacetic acid). By adding the EDTA complexing agent to a sample with metal ions, a stable complex is formed, the concentration of which can then be determined using a titration reaction with a suitable indicator.

In surface technology, complexometry is often used to quantify the concentration of metal ions in different solutions. This is particularly important when monitoring cleaning and etching processes in which metal ions can dissolve. By accurately determining the metal concentration, manufacturers can ensure that their processes are efficient and reproducible and that the quality of the treated surfaces meets requirements.

Complexometry provides a precise and reliable method for determining metal ions in complex solutions and therefore plays an essential role in quality control and process optimization in surface technology.