Sulfur, chlorine and ash in coal AppNote XRF1419: analysis of S, Cl and predicted ash in unburned coal
Recycled automotive catalytic converters AppNote XRF1095: analysis of Pt, Rh and Pd in catalytic converters with FP
Analysis of Air Filters - U.S. EPA Sensitivity AppNote XRF1951: Analysis of Air Filters - U.S. EPA Sensitivity