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Extraction of Main Components and Characteristics of Heavy Metals Distribution in the Suspended Particulate Matters in Natural Waters

SHEN Xiu-e, DONG De-ming, LU Yong-zheng, LV Li-sha, HUA Xiu-yi   

  1. College of Environment and Resources, Jilin University, Changchun 130012,China
  • Received:2006-09-18 Revised:1900-01-01 Online:2007-07-26 Published:2007-07-26
  • Contact: DONG De-ming

Abstract: In order to investigate the effect of the main components of the suspended particulate matters on heavy metals in aquatic environments, a selective chemical extraction method was employed to extract Mn, Fe oxides and organic matters in suspended particulate matters sampled from Yitong River and Nanhu Lake in Changchun City. Optimum extraction conditions were selected by the condition experiments and the concentration of Cu, Pb, Zn in main components were also determined for revealing the distribution of the heavy metals in the suspended particulate matters. It was found that hydroxylamine hydrochloride (0.006 mol/L NH2OH·HCl+0.01 mol/L HNO3) can remove most of Mn oxides, and sodium dithionite (0.8 mol/L Na2S2O4

Key words: suspended particulate matters, selective extraction, heavy metals, distribution

CLC Number: 

  • X132
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