Abstract
The contents and speciation characteristics of rare earth elements (REE) in the Wuban section of the Yangtze River were analysed by neutron activation analysis (NAA). The content of suspended fraction of REE in the river varies widely with the variation of suspended matter. The distribution patterns showed significant light REE enrichment and relative Eu-depletion. The speciation characteristics of REE in the sediments or suspended matter are quite similar, with the main amount in residual form. The amount of five forms obey the following order: residual≫bound to organic matter, bound to Fe-Mn oxides>bound to carbonates≫exchangeable. Compared with light and heavy REE, the mediate REE (Eu, Sm, Tb) have relatively low percentages in the residual form and high in the forms bound to organic matter and Fe-Mn oxides. -from Authors
| Original language | English |
|---|---|
| Pages (from-to) | 44-51 |
| Number of pages | 8 |
| Journal | Journal of Environmental Sciences (China) |
| Volume | 7 |
| Issue number | 1 |
| Publication status | Published - 1995 |
| Externally published | Yes |