X-ray fluorescence (XRF) is a powerful quantitative and qualitative tool ideally suited to analyzing film thickness and composition, determining elemental concentration by weight of solids and solutions, and identifying specific and trace elements in complex sample matrices. XRF analysis is used extensively in almost all industries, including metal finishing and refining, semiconductors, telecommunications and microelectronics, food, pharmaceuticals, cosmetics, agriculture, plastics, rubbers, textiles, fuels, chemicals, and environmental fields. The wide deployment of XRF analysis tools in industry is the result of XRF's ability to perform noncontact, nondestructive tests with speed and precision, combined with a low cost of ownership compared to other measurement techniques.