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| 连续萃取法研究海湾养殖区沉积物中重金属形态 | |
| 引用本文： | 郭鹏然,牟德海,王畅,仇荣亮,杜虹.连续萃取法研究海湾养殖区沉积物中重金属形态[J].分析化学,2009,37(11). |
| 作者姓名： | 郭鹏然 牟德海 王畅 仇荣亮 杜虹 |
| 作者单位： | 1. 中山大学环境科学与工程学院,广州,510725;中国广州分析测试中心,广东省化学危害应急检测技术重点实验室,广州,510070 2. 中国广州分析测试中心,广东省化学危害应急检测技术重点实验室,广州,510070 3. 中山大学环境科学与工程学院,广州,510725 4. 汕头大学理学院,汕头,515063 |
| 摘 要： | 以连续萃取法研究海湾养殖区沉积物中重金属(Cd, Cu, Pb, Zn)的形态,将重金属分离为酸溶态、还原态、有机质结合态、硫化物结合态和残渣态.分别采用基体匹配法和内标法消除高盐基体对电感耦合等离子体光谱法(ICP-OES)和质谱法(ICP-MS)分析结果的影响.对海洋沉积物标准物质分析结果表明,样品稀释后测定值与标准值一致.比较了本连续萃取法和BCR法对沉积物样品中重金属形态的提取结果,并考察了萃取剂的选择性.实验表明,本方法可用于有机质污染和富营养化环境沉积物中重金属形态分析,特别是有机质结合态和硫化物结合态的分析. |
| 关 键 词： | 连续萃取法 沉积物 重金属 形态分析 海水养殖 |
Research of Sequential Extraction Procedure for Heavy Metals in Sediments from Mariculture Area |
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| GUO Peng-Ran,MOU De-Hai,WANG Chang,QIU Rong-Liang,DU Hong.Research of Sequential Extraction Procedure for Heavy Metals in Sediments from Mariculture Area[J].Chinese Journal of Analytical Chemistry,2009,37(11). | |
| Authors: | GUO Peng-Ran MOU De-Hai WANG Chang QIU Rong-Liang DU Hong |
| Institution: | GUO Peng-Ran1,MOU De-Hai 2,WANG Chang2,QIU Rong-Liang1,DU Hong3 1 ( School of Environmental Science and Engineering,Sun Yat-Sen University,Guangzhou 510275) 2 ( Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals,China National Analytical Center ( Guangzhou),Guangzhou 510070) 3 ( College of Science,Shantou University,Shantou 515063) |
| Abstract: | A sequential extraction procedure has been proposed for the evaluation of the speciation of heavy metals including Cd,Cu,Pb and Zn in sediments from mariculture area,and the speciation of heavy metals was separated and defined as acid soluble fraction,reducible fraction,fraction bound organic matter,fraction bound sulfides and residual fraction. Matrix effects of high salinity on the determination of heavy metals in sediments were eliminated by matrix matching and internal standard methods when inductively ... |
| Keywords: | Sequential extraction procedure sediment heavy metal speciation analysis mariculture |
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