This grant pays for a new X-Ray Fluorescence (XRF) spectrometer to replace two old and failing X-ray spectrometers at UMass-Amherst. The current instruments have operated constantly for more than 30 years. The new instrument will continue to be an important resource for the students and faculty at UMass, the Five College consortium in the region and universities worldwide. The UMass laboratory has served scientists the world over for more than 30 years. It will now be able to continue the tradition as a valuable and trusted resource for high quality XRF chemical analyses to the U.S. scientific community.