Cadmium (standard sample) is widely used in analytical chemistry as a reference material for calibration and quality control in various testing procedures. It ensures the accuracy and precision of instruments like atomic absorption spectrometers and inductively coupled plasma mass spectrometers. In environmental monitoring, it serves as a benchmark for detecting and quantifying cadmium levels in soil, water, and air samples, aiding in pollution assessment and regulatory compliance. Additionally, it is utilized in research and development to validate analytical methods and study cadmium's behavior in different chemical processes. Its role in ensuring reliable measurements makes it essential in industries such as metallurgy, electronics, and environmental science.