Study on the relationship between speciation of heavy metals and their ecotoxicity

Zhang Manping; Wang Juying; Bao Junbo

doi:10.1007/BF02843822

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Study on the relationship between speciation of heavy metals and their ecotoxicity

OriginalPaper | Updated：2023-05-16

- Study on the relationship between speciation of heavy metals and their ecotoxicity
- Study on the relationship between speciation of heavy metals and their ecotoxicity
- 海洋湖沼学报（英文） 1992年10卷第3期页码：215-222
- Affiliations：
- Author bio：
- Funds：
  
  Project supported by the Fund of Excellent Young Teachers of State Educational Commission of China.
- DOI：10.1007/BF02843822
  中图分类号：
- 纸质出版：1992
- Accepted：
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Study on the relationship between speciation of heavy metals and their ecotoxicity[J]. 海洋湖沼学报（英文）, 1992,10(3):215-222.

Manping, Z., Juying, W. & Junbo, B. Study on the relationship between speciation of heavy metals and their ecotoxicity., Chin. J. Ocean. Limnol. 10, 215–222 (1992). https://doi.org/10.1007/BF02843822
Study on the relationship between speciation of heavy metals and their ecotoxicity[J]. 海洋湖沼学报（英文）, 1992,10(3):215-222. DOI： 10.1007/BF02843822.

Manping, Z., Juying, W. & Junbo, B. Study on the relationship between speciation of heavy metals and their ecotoxicity., Chin. J. Ocean. Limnol. 10, 215–222 (1992). https://doi.org/10.1007/BF02843822 DOI：

摘要

Abstract

Heavy metal is a main pollutant in the marine ecosystem

so study on the effect of heavy metal on phytoplankton is important. Algae (Chaetoceros sp.

Dunaliella sp.

Dicrateria zhanjiangenis Hu. var. sp.) were laboratory cultured to observe the effect of heavy metals on their growth. The effect of different metal ion concentration

the detoxication effect of complexation agents and the growth of algae in different media and different nutrition levels were studied to evaluate the effect of metal speciation. It is proved that trace amount of heavy metals can stimulate the growth of algae cells but that high concentration is lethal. The sequence of toxicity is Cd2+>Zn2+>Pb2+. In ordinary nutrition conditions

the detoxication sequence of complexation agents toChaetoceros sp. is EDTA >sodium salicylate>sodium oxalate >sodium citrate>sulfanilic acid>O-phenanthroline. This is in good conformity with the stability constant sequence of these agents with copper and good evidence that toxicity of metal ion is related to its activity and not to its total concentration.

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references

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