Association of cadmium, zinc, copper, and nickel with components in naturally heavy metal‐rich soils studied by parallel and sequential extractions
作者： R. P. Narwal , B. R. Singh , B. Salbu
DOI: 10.1080/00103629909370279
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摘要: Abstract In this study, a new parallel and sequential extraction procedure was proposed to investigate the solubility of metals [cadmium (Cd), zinc (Zn), copper (Cu), nickel (Ni)] their association with soil components in naturally metal‐rich soils Norway. Two different soils, alum shale (clay loam) moraine (loam), developed on minerals were used. Each had two pH levels. For successive extractions, H2O, 0.1M NH4OAc (soil pH), 0.3M 1M (pH 5.0) A significant amount Cd extracted by NH4O Ac related concentration extracting solution. The amounts Zn, Cu, Ni these reagents almost negligible except 5.0). Thus strongly bound components. seven step applied evaluate constituents. extractions performed sequentially s...
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