title: Application of real integration to trace analysis in atomic absorption spectroscopy.
mesh_terms: D003300:Copper / Q000652:urine; D006801:Humans; D008628:Mercury / Q000032:analysis; D013054:Spectrophotometry, Atomic / Q000379:methods*; D014867:Water / Q000032:analysis
chemical_list: D014867:Water; D003300:Copper; D008628:Mercury