title: Improved assay for alpha-tocopherol in the picogram range, using gas chromatography--mass spectrometry.
mesh_terms: D000818:Animals; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D008168:Lung / Q000032:analysis / Q000378:metabolism*; D014810:Vitamin E / Q000032:analysis*
chemical_list: D014810:Vitamin E