Inverse-Voltammetric Determination of Low Contents of Bi, Pb, and Cd in Natural and Technogenic Objects

摘要

An inverse-voltammetric method of simultaneous determination of Bi, Pb, and Cd in solid natural and technogenic objects on the level of 0.5 - 100 mg/kg is presented. We used an electrochemical unit EM- 0.4 with a glass-carbon electrode NTF ("VOLTA", St. Petersburg) and a computer controlled PU-1 polarograph modified at INFRATON (Moscow). We have performed multicomponent determination of Bi, Pb, and Cd in soil, soil extracts, quartz sands, silicate rocks, silt, bottom sediments, wastewater mud, chalk, and raw meal for cement production.