Used in analytical chemistry for calibration of instruments such as atomic absorption spectrometers and ICP-OES to determine strontium content in samples. Commonly applied in environmental testing to measure strontium levels in water and soil. Employed in geological studies for trace element analysis of rock and mineral samples. Also utilized in biological research to study strontium uptake in tissues and its potential role in bone metabolism. Suitable as a standard in quality control processes within pharmaceutical and industrial laboratories.