Selective extraction and separation of Fe, Mn oxides and organic materials in river surficial sediments
文献类型：期刊论文
| 作者 | Li, FM ; Wang, XL ; Li, Y ; Guo, SH ; Zhong, AP |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2006 |
| 卷号 | 18期号:6页码:1233-1240 |
| 关键词 | surficial sediments selective extraction iron oxides manganese oxides organic materials |
| ISSN号 | 1001-0742 |
| 通讯作者 | Li, Y, Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China |
| 中文摘要 | In order to investigate the adsorption mechanism of trace metals to surficial sediments (SSs), a selective extraction procedure was improved in the present work. The selective extraction procedure has been proved to selectively remove and separate Fe, Mn oxides and organic materials (OMs) in the non-residual fraction from the SSs collected in Songhua River, China. After screening different kinds of conventional extractants of Fe and Mn oxides and OMs used for separation of heavy metals in the soils and sediments, NH2OH center dot HCl (0.1 mol/L) + HNO3 (0.1 mol/L), (NH4)(2)C2O4 (0.2 mol/L) + F12C2O4 (pH 3.0), and 30% of H2O2 were respectively applied to selectively extract Mn oxides, Fe/Mn oxides and OMs. After the extraction treatments, the target components were removed with extraction efficiencies between 86.09%-93.36% for the hydroxylamine hydrochloride treatment, 80.63%101.09% for the oxalate solution extraction, and 94.76%-102.83% for the hydrogen peroxide digestion, respectively. The results indicate that this selective extraction technology was effective for the extraction and separation of Fe, W oxides and OMs in the SSs, and important for further mechanism study of trace metal adsorption onto SSs. |
| 学科主题 | Environmental Sciences |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000242222400034 |
| 公开日期 | 2011-09-23 |
| 源URL | [http://210.72.129.5/handle/321005/54829]  |
| 专题 | 沈阳应用生态研究所_沈阳应用生态研究所_期刊论文 |
| 推荐引用方式 GB/T 7714 | Li, FM,Wang, XL,Li, Y,et al. Selective extraction and separation of Fe, Mn oxides and organic materials in river surficial sediments[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2006,18(6):1233-1240. |
| APA | Li, FM,Wang, XL,Li, Y,Guo, SH,&Zhong, AP.(2006).Selective extraction and separation of Fe, Mn oxides and organic materials in river surficial sediments.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,18(6),1233-1240. |
| MLA | Li, FM,et al."Selective extraction and separation of Fe, Mn oxides and organic materials in river surficial sediments".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 18.6(2006):1233-1240. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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