Isotope test in μm scale

[CycleUser]

Is there any method to measure H -D and O Isotope in a μm scale?

I got some samples of fluid Intrusion inside of quartz .

Their diameters are about 10 μm .

Is that possible to measure the isotopes in such a little scale ?

And who can do that ?

Thanks a lot !

 

[Enthalpy]

Welcome here!

 

Mass spectroscopy counts individual atoms, so the amount wouldn't be a limit. I just wonder how to evaporate only the area that interests you; answers exist probably. Just ask such people.

 

Possibly a jet of etchant ions could be directed only at the area of interest and evaporate the unknown nuclides only there. It would take some pure ion source which is not hydrogen nor oxygen. The jet would be produced inside the source chamber of the spectroscopy apparatus. This must exist somewhere, ready for use.