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Sand culture was used to investigated the Cd and Pb phyto extraction by sunflower, and changes of organic acids including oxalic acids, citric acids and tartaric acids. The results showed that bioconcentration factors (BCF) of Cd or Pb increased with time and decreased with concentrations, the highest Cd-BCF and Pb-BCF appeared in Cd5 (21) and Pb50(7.95), respectively. The contents of oxalic acids...
Sand culture was used to investigated the Cd and Pb phytoextraction by sunflower, and changes of organic acids including oxalic acids, citric acids and tartaric acids. The results showed that bioconcentration factors (BCF) of Cd or Pb increased with time and decreased with concentrations, the highest Cd-BCF and Pb-BCF appeared in Cd5 (21) and Pb50 (7.95), respectively. The contents of oxalic acids...
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