Titrimetry is a collective name for a group of methods to accurately quantify a component in a liquid or solid material. Applications can vary from simple process control, like the determination of the concentration of a developer, to complicated valency analyses in solid materials.
During a titrimetric method, a stoichiometric chemical reaction takes place between a component from the sample and standard reagent with a well-known concentration. The standard solution is stepwise added as small, well-defined amounts until the reaction with the analyte is completed. The endpoint of such a titration can be monitored by electrochemical means (potentiometric titrations), visually or photometrically. Eventually, the concentration of the analyte in the sample can be calculated by using the total amount of reagent consumed, the concentration of the reagent solution and the reaction stoichiometry.