Energy Dispersive X-ray Spectroscopy (EDX or EDS) is an analytical technique used to identify the elemental composition of materials. It works by directing a beam of electrons onto a sample, which causes the sample to emit X-rays. These X-rays are then detected and analyzed to determine the elements present in the sample and their relative concentrations. EDX is commonly used in various fields, including materials science, metallurgy, and forensic analysis. It provides rapid results and can be performed on solid, liquid, or powdered samples. The technique is often coupled with scanning electron microscopy (SEM) for detailed imaging and analysis.