Inductively Coupled Plasma Mass Spectrometry (ICP-MS) is an analytical technique used to detect and quantify trace elements in various samples. It works by ionizing the sample with an inductively coupled plasma, which generates charged particles. These ions are then directed into a mass spectrometer, where they are separated based on their mass-to-charge ratio. ICP-MS is highly sensitive and can measure concentrations as low as parts per trillion. It is widely used in fields such as environmental science, geochemistry, and biomedical research to analyze metals and other elements in complex matrices like water, soil, and biological tissues.