Relationships between Changes of Three Organic Acids (Oxalic Acid, Citric Acid and Tartaric Acid) and Phytoextraction by Sunflower (Helianthus annuus L.) in Sand Cultures Contaminated with Cadmium and Lead

@article{Niu2010RelationshipsBC,
  title={Relationships between Changes of Three Organic Acids (Oxalic Acid, Citric Acid and Tartaric Acid) and Phytoextraction by Sunflower (Helianthus annuus L.) in Sand Cultures Contaminated with Cadmium and Lead},
  author={Zhixin Niu and Lina Sun and Tieheng Sun},
  journal={2010 International Conference on Digital Manufacturing & Automation},
  year={2010},
  volume={2},
  pages={149-153}
}
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 in Cd 40 were the highest (152.20 mg¡¤L-1) at the 90th day. Citric acids in Cd10and Pb400… CONTINUE READING
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