Educational
Since XRF is an important analytical method in chemistry and geology, many universities have XRF instruments as both a teaching and research tool.

Paints and Pigments
Many paints and pigments contain metal dies that can be analyzed by XRF. One specific application is titanium dioxide and lead chromate respectively in white and yellow road paint.

Si and Fe in Copier Toner
Si, Fe and several other elements are present in copier toner. The formulations vary widely, but all can be analyzed by XRF.

Fe in Magnetic Recording Tape
Iron and other metals in recording tape are monitored by XRF.

Ag and Br in Photographic Film and Plates
Silver is expensive and there is a lot of it on photographic film and plates. It can be measured without exposing the film. XRF is also used for measured silver in chemicals that are saved for recycling, and can monitor wastewater to ensure the silver levels are within legal limits.

Chlorine in Cutting Fluids
Cutting fluids contain chlorine in fairly high concentrations, but it must be controlled for consistency.

Sulfur in Paper Manufacturing
XRF has been used for monitoring sulfuric acid in white a black liquor used in paper pulp processing.

S and Cl in Hydraulic Fluid
Sulfur and chlorine are present in hydraulic fluids at concentrations near 100 PPM. XRF has been used for this analysis.