title: The determination of small amounts of copper in organic matter by atomic-absorption spectroscopy.
mesh_terms: D001628:Beverages / Q000032:analysis; D002625:Chemistry, Organic; D003300:Copper / Q000032:analysis*; D005504:Food Analysis; D007202:Indicators and Reagents; D008722:Methods; D055601:Organic Chemistry Phenomena; D013053:Spectrophotometry
chemical_list: D007202:Indicators and Reagents; D003300:Copper