| 几种化学浸提剂对底泥重金属生物有效部分浸提效果的比较 |
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| 引用本文： | 郭明新,林玉环.几种化学浸提剂对底泥重金属生物有效部分浸提效果的比较[J].环境科学,1998,19(1):9-12. |
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| 作者姓名： | 郭明新 林玉环 |
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| 作者单位： | 中国科学院生态环境研究中心 |
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| 摘 要： | 采用微生态系统生物长期暴露试验，比较５种化学浸提剂对底泥重金属生物有部分的浸提效果。结果表明，０．００５ｍｏｌ／ＬＤＴＰＡ＋０．１ｍｏｌ／Ｌ ＴＥＡ＋０．０１ｍｏＬ ＣａＣｌ２，ｐＨ７．３０是一种适合于食腐屑底栖动物的底泥重金属生物有效部分浸提剂；而０．００５ｍｏｌ／ＬＤＴＰＡ＋１ｍｏｌ／Ｌ ＮＨ４ＨＣＯ３．ｐＨ７．６８则一种适合于滤食性动物和水生根系植物底泥重金属生物有效部分浸提剂。
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| 关 键 词： | 化学浸提剂 底泥 重金属 生物有效性 生物监测 |
| 收稿时间： | 1997/5/27 0:00:00 |
Comparing the Extraction Results of Selected Solutions for Bioavailable Parts of Heavy Metals in Sediment |
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| Guo Mingxin and Lin Yuhuan.Comparing the Extraction Results of Selected Solutions for Bioavailable Parts of Heavy Metals in Sediment[J].Chinese Journal of Environmental Science,1998,19(1):9-12. |
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| Authors: | Guo Mingxin and Lin Yuhuan |
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| Institution: | Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085 |
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| Abstract: | With a micro-ecosystem bioassay test,this paper compared the extraction results of five selected solutions for bioavailable parts of heavy metals in sediment.It was showed that the extraction solution 0.005mol/L DTPA+0.1mol/L TEA+0.01mol/L CaCl2,pH7.30 is good for benthic deposit-feeders to extract the bioavailable parts of heavy metals in sediment,and the extraction solution 0.005mol/L DTPA+1mol/L NH4HCO3,pH7.68 is suitable for filter-feeders and rooted plants to extract the bioeffective parts of heavy metals in sediment. |
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| Keywords: | chemical extraction solution sediment heavy metal bioavailable micro-ecosystem |
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