title: A simple isotope dilution technique for the determination of lead and copper in natural waters.
mesh_terms: D003300:Copper / Q000032:analysis*; D004563:Electrochemistry; D005374:Filtration; D007854:Lead / Q000032:analysis*; D008722:Methods; D011865:Radioisotope Dilution Technique; D014867:Water / Q000032:analysis*
chemical_list: D014867:Water; D007854:Lead; D003300:Copper