Spectrometry is a scientific technique used to measure and analyze the properties of light emitted, absorbed, or scattered by materials. It helps identify the composition and concentration of substances by examining how they interact with different wavelengths of light. This method is widely used in fields such as chemistry, biology, and environmental science. One common type of spectrometry is mass spectrometry, which determines the mass-to-charge ratio of ions. Another is infrared spectrometry, which focuses on the infrared region of the electromagnetic spectrum to identify molecular structures. These techniques provide valuable information for research, quality control, and forensic analysis.