| 珠江柱状沉积物中铊化学形态的研究 |
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| 引用本文： | 刘娟,张平,陈永亨,齐剑英,王津,王春霖,王雪影.珠江柱状沉积物中铊化学形态的研究[J].广州大学学报(自然科学版),2008,7(1):67-70. |
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| 作者姓名： | 刘娟 张平 陈永亨 齐剑英 王津 王春霖 王雪影 |
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| 作者单位： | 广州大学环境科学与工程学院,广东广州,510006;中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东广州,510640;广州大学环境科学与工程学院,广东广州,510006 |
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| 基金项目： | 国家自然科学基金委一广东省人民政府联合基金
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国家自然科学基金
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广州市科技计划 |
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| 摘 要： | 利用ICP-MS测定技术和分级提取形态分析手段对珠江某处沉积物中痕量重金属铊的化学形态进行了考察.结果表明,铊以酸可交换态、可还原态、可氧化态和残余态在上、中、下层沉积物中均有分布;且上层沉积物中铊主要分布在残余态,在其余各形态中的分布基本相近;在中层沉积物中铊主要分布在残余态,其次是可还原态、酸可交换态以及可氧化态;下层主要分布在可氧化态,其次是残余态、酸可交换态以及可还原态.由此推测,该处沉积物当前未受到明显的铊污染.
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| 关 键 词： | BCR分级提取 柱状沉积物 铊 化学形态 |
| 文章编号： | 1671-4229（2008）01-0067-04 |
| 收稿时间： | 2007-09-18 |
| 修稿时间： | 2007-09-25 |
Determination of thallium chemical form in sediment core from Pearl River |
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| LIU Juan,ZHANG Ping,CHEN Yong-heng,QI Jian-ying,Wang jin,WANG Chun-lin,WANG Xue-ying.Determination of thallium chemical form in sediment core from Pearl River[J].Journal og Guangzhou University:Natural Science Edition,2008,7(1):67-70. |
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| Authors: | LIU Juan ZHANG Ping CHEN Yong-heng QI Jian-ying Wang jin WANG Chun-lin WANG Xue-ying |
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| Abstract: | The chemical form of trace heavy metal thallium in sediment core from Pearl River was studied by the ICP-MS method and sequential analysis. As shown in the result, the acid exchangeable, reducible, oxidable and residual forms of thallium all existed in the up, middle and down bottom stratum of the sediment core. And in the top stratum, thallium mainly existed as the residual form and the content of thallium in the other forms is similar; in the middle stratum, thallium also mainly existed as the residual form followed by the reducible, acid exchangeable and oxidable; in the down bottom stratum, and thallium mainly existed as the oxidable form followed by the residual, acid exchangeable and reducible. It is speculated that the sediment core is not polluted by thallium at present. |
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| Keywords: | BCR sequential extraction sediment core thallium chemical form |
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