Used in analytical chemistry to detect and quantify metal ions, particularly aluminum and other trivalent metals, in solution. The test solution produces a distinct fluorescent color change when it reacts with target ions, making it useful in qualitative spot tests and water quality analysis. Commonly applied in environmental testing to identify metal contamination in soil and water samples. Also utilized in industrial processes for quality control where detection of trace metal impurities is critical. Its high sensitivity and visible fluorescence under UV light allow for easy and rapid detection without sophisticated instrumentation.