title: Trace elements in biological systems: nuclear techniques app.
abstract: Nuclear techniques are very useful in the simultaneous determination of many trace elements in biological samples; the sensitivity depends on the method and on the elements in study and in many cases is better than 0;1 ppm. Proton-induced X-ray fluorescence and alpha-particle elastic diffusion techniques are described; the methods of sample preparation, the sensitivity obtained and some experimental results are included.
mesh_terms: D000512:Alpha Particles; D000818:Animals; D005453:Fluorescence; D006706:Homeostasis; D006801:Humans; D009686:Nuclear Physics; D011522:Protons; D012106:Research; D014131:Trace Elements / Q000378:metabolism*
chemical_list: D011522:Protons; D014131:Trace Elements