Apatite is the most abundant phosphorous mineral. It is the defining mineral for 5 on the Mohs scale of hardness and is often used for U/Th dating of orogenic processes. Apatite-NP is designed and certified for use by LA-ICP-MS.
However, it is also possible to press nano-pellets for all other methods. These will not be designated as certified, but are very well characterised for their chemical composition. Feel free to contact us!