Sulfur, chlorine and ash in coal AppNote XRF1419: analysis of S, Cl and predicted ash in unburned coal
NEX QC+ QuantEZ EDXRF for teaching and basic research AppNote XRF1654: NEX QC+ QuantEZ EDXRF for teaching and basic research
Analysis of Air Filters - U.S. EPA Sensitivity AppNote XRF1951: Analysis of Air Filters - U.S. EPA Sensitivity