| HPSEC-UV-ICP-MS法测定天然水体中元素在不同分子量段DOM中的分布 |
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| 引用本文： | 王征,荆淼,黎先春,王小如.HPSEC-UV-ICP-MS法测定天然水体中元素在不同分子量段DOM中的分布[J].高等学校化学学报,2006,27(6):1045-1047. |
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| 作者姓名： | 王征 荆淼 黎先春 王小如 |
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| 作者单位： | 国家海洋局第一研究所现代分析技术及中药标准化重点实验室,青岛,266061 |
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| 摘 要： | 溶解有机物(DOM)对痕量金属的形态、生物可利用性及其最终归属都有着很大的影响. 由于腐殖质(HS)是DOM的最大组成部分, 占溶解有机碳比重的40％-70％, 而HS是由芳香族、酚族、 醌族和杂环的结构单元无规则缩合连接成的大分子. 这种多官能团的结构使得HS与痕量金属有着很强的络合能力, 从而增加了天然水体中的金属浓度. 本文利用此技术首次获得了11种元素在海水水体中DOM上不同分子量的天然分布, 探讨了DOM对痕量金属在天然水体中的形态及迁移的影响.
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| 关 键 词： | 溶解有机物(DOM) 元素形态 联用技术 |
| 文章编号： | 0251-0790（2006）06-1045-03 |
| 收稿时间： | 09 14 2005 12:00AM |
| 修稿时间： | 2005-09-14 |
Molecular Size Distribution Characteristics of the Element-DOM Complexes in Nature Waters by HPSEC-UV-ICP-MS |
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| WANG Zheng,JIANG Miao,Frank S. C. Lee,WANG Xiao-Ru.Molecular Size Distribution Characteristics of the Element-DOM Complexes in Nature Waters by HPSEC-UV-ICP-MS[J].Chemical Research In Chinese Universities,2006,27(6):1045-1047. |
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| Authors: | WANG Zheng JIANG Miao Frank S C Lee WANG Xiao-Ru |
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| Institution: | Analytical Technology Development &; Standardization of Chinese Medicine Laboratory, The First Institute of Oceanography, SOA, Qingdao 266061, China |
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| Abstract: | The complexation of the elements P, S, Cr, Ni, Cu, Zn, Fe, Hg, Pb, Cd and As with different molecular size fractions of dissolved organic matter in one river water sample and two sea water samples were investigated by coupling size-exclusion chromatography sequentially with UV-Vis and inductively coupled plasma mass spectrometric detectors. and its element-bound complexes. It can provide quantitative information This information would be helpful in regarding the distribution of both DOM understanding of the speciation, mobility and bio-accessibility of elements in the environment and further elucidation of the dissolved organic matter structure. |
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| Keywords: | Dissolved organic matter(DOM) Elemental species Hyphenated technique |
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