ζ-Stat is primarily used in the field of analytical chemistry as a reagent for the detection and quantification of specific ions in various samples. It is particularly effective in water quality testing, where it helps identify the presence of contaminants such as heavy metals or other harmful substances. In environmental monitoring, ζ-Stat is employed to assess the safety of drinking water and the health of aquatic ecosystems. Additionally, it finds application in industrial processes, where it is used to ensure the purity of water used in manufacturing, thus preventing potential damage to equipment or contamination of products. Its ability to provide accurate and reliable results makes it a valuable tool in both research and routine testing procedures.