The iridium standard solution is primarily used in analytical chemistry for calibration and quality control purposes. It serves as a reference material in techniques like atomic absorption spectroscopy (AAS) and inductively coupled plasma mass spectrometry (ICP-MS) to ensure accurate measurement of iridium concentrations in various samples. This solution is crucial in industries such as electronics, where iridium is used in high-performance alloys and coatings, as well as in catalysis research for developing efficient chemical processes. Additionally, it plays a role in environmental monitoring, helping to detect and quantify iridium levels in soil, water, and air samples. Its precision and reliability make it an essential tool for laboratories and research institutions.