| 冲积平原区土壤中重金属元素的存在形态分析 |
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| 引用本文： | 吴昆明,朱立新,马生明,李增文,王之峰. 冲积平原区土壤中重金属元素的存在形态分析[J]. 分析测试学报, 2004, 23(2): 41-43,47 |
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| 作者姓名： | 吴昆明 朱立新 马生明 李增文 王之峰 |
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| 作者单位： | 吉林大学,分析化学系,吉林,长春,130026;中国地质科学院物化探研究所,河北,廊坊,065000 |
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| 摘 要： | 采用0.1mol／L氢氧化钠浸提腐殖酸的方法，将土壤中的腐殖酸及与腐殖酸结合的重金属元素分离出来；分别用分光光度法、原子荧光光谱法、等离子质谱法测定样品中腐殖酸及重金属元素的含量；初步测定结果显示：与腐殖酸结合的重金属元素是冲积平原区表层土壤中重金属元素的1种重要存在形态，而且可能是土壤中重金属污染元素主要的存在形式。
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| 关 键 词： | 冲积平原 腐殖酸 重金属元素 存在形态 土壤 |
| 文章编号： | 1004-4957(2004)02-0041-03 |
Analysis of Heavy Metal Speciation in Alluvial Plain Soil |
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| WU Kun-ming,ZHU Li-xin,MA Sheng-ming,LI Zeng-wen,WANG Zhi _ feng. Analysis of Heavy Metal Speciation in Alluvial Plain Soil[J]. Journal of Instrumental Analysis, 2004, 23(2): 41-43,47 |
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| Authors: | WU Kun-ming ZHU Li-xin MA Sheng-ming LI Zeng-wen WANG Zhi _ feng |
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| Affiliation: | WU Kun-ming1,ZHU Li-xin2,MA Sheng-ming2,LI Zeng-wen1,WANG Zhi _ feng2 |
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| Abstract: | Humic acid(HA) and humic acid combined with heavy metal were macerated and extracted from soil with 0.1 mol/L sodium hydroxide. Humic acid and heavy metal content were analyzed by spectrophotometry, AFS and MS, respectively. The experimental results showed that humic acid combined with heavy metal was an important speciation of heavy metal in topsoil of alluvial plain. It may be a dominant speciation of contaminated heavy metal. |
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| Keywords: | Alluvial plain Humic acid Heavy metal Subsistent speciation Soil |
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