title: Techniques for trace element analysis: x-ray fluorescence, x-ray excitation with protons, and flame atomic absorption.
mesh_terms: D001774:Blood Chemical Analysis / Q000379:methods; D003300:Copper / Q000097:blood; D006801:Humans; D007501:Iron / Q000097:blood; D011522:Protons; D013050:Spectrometry, Fluorescence; D013054:Spectrophotometry, Atomic; D014131:Trace Elements / Q000097:blood*; D015032:Zinc / Q000097:blood
chemical_list: D011522:Protons; D014131:Trace Elements; D003300:Copper; D007501:Iron; D015032:Zinc