title: Problems concerning multi-element assay in biological materials.
mesh_terms: D000397:Air Pollution / Q000032:analysis; D000818:Animals; D001688:Biological Products / Q000032:analysis*; D001774:Blood Chemical Analysis; D001826:Body Fluids / Q000032:analysis*; D001842:Bone and Bones / Q000032:analysis; D004602:Elements / Q000032:analysis*; D006801:Humans; D007668:Kidney / Q000032:analysis; D013058:Mass Spectrometry; D008722:Methods; D051381:Rats; D013057:Spectrum Analysis; D014131:Trace Elements / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000032:analysis
chemical_list: D001688:Biological Products; D004602:Elements; D014131:Trace Elements