X-ray fluorescence (XRF) is a powerful analytical technique widely used to determine the chemical composition of a sample. XRF is based on the interaction of X-rays with the electrons of atoms in a sample, which creates a fluorescent Xray with a discrete energy characteristic of the atom and its chemical environment. The emitted X-rays are then measured by a detector, and the intensity and energy of the X-rays provide information about the elements present in the sample.