title: Simple apparatus for trace analysis of toxic heavy metals. Determination of cadmium and lead by manual D.C. polarography.
abstract: A simple manual d.c. polarographic apparatus is described which can be assembled from ordinary laboratory equipment. The sensitivity of this apparatus can reach +/-0.5 mV in voltage and +/-0.005 muA in current. Using this set up, trace amounts of cadium and lead in foods and beverages can be determined at the ppm region.
mesh_terms: D002104:Cadmium / Q000032:analysis*; D005504:Food Analysis; D007854:Lead / Q000032:analysis*; D011048:Polarography / Q000295:instrumentation* / Q000379:methods; D014131:Trace Elements / Q000032:analysis*
chemical_list: D014131:Trace Elements; D002104:Cadmium; D007854:Lead