Abstract
A simple and reliable alternating current tast-polarographic method is described to determine lead concentration in bone. The bone samples are solubilized and oxidized with a HNO 3-HClO 4 mixture and after evaporating the acids the residue is dissolved in 20% citric acid used as a supporting electrolyte. The high inorganic salt concentrations from the bone matrix do not impede the polarographic measurement. Sensitivity: 2 p.p.m. lead in bone. Standard error: 6%. Reliability range: 2–1000 p.p.m.
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