I'm sure, that "mass-spec flame atomic absorption spectroscopy" will be very acurate, but I'm also sure, that unfortunately it's totaly out of reach. We need to stick to the basic methods, I hope in future I will have possibility to work with "modern techniques" That's why I'm asking about biochemical, I think less complicated and easier to perform methods in random laboratory.
Sorry fot this misunderstanding, it's probably because constant language changes of mine (study, live, research project) Of course I mean Iron (Fe).
To be more precise: we are willing to better understand or to find a cause of very rare "pigmented plaque" on children's teeth. We suspect, that it may be partly caused by increased amount of Iron in their saliva. That's why we need to know their level and compare it with control patients. That's why I'm asking about laboratory method (reagents, procedure) which we can suggest to our biochemical department
I hope now it's a bit more clear