| 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 |
| 摘要点击 982 全文点击 1751 投稿时间：1997-05-27 |
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| 中文关键词 化学浸提剂 底泥 重金属 生物有效性 微生态系统 |
| 英文关键词 chemical extraction solution sediment heavy metal bioavailable micro-ecosystem |
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| 中文摘要 |
| 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效部分的浸提效果。结果表明,0.005mol/LDTPA+0.1mol/LTEA+0.01mol/LCaCl2,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/LNH4HCO3,pH7.68则是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。 |
| 英文摘要 |
| 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. |
