| A.Tessier逐级提取程序应用于土镉形态研究的可靠性 |
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| 引用本文： | 陈学诚,董文庚,郎志敏,李生志,钱金平.A.Tessier逐级提取程序应用于土镉形态研究的可靠性[J].环境科学,1991(6):25-28,36. |
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| 作者姓名： | 陈学诚 董文庚 郎志敏 李生志 钱金平 |
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| 作者单位： | 河北轻化工学院环境工程系
(陈学诚，董文庚，郎志敏)，河北师范大学地理系
(李生志)，河北师范大学地理系(钱金平) |
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| 摘 要： | 以国家级土壤标准物GBW07401为样本,定量添加不同化学形态的镉,对较流行的加拿大地球化学家Andre’Tessier推荐的颗粒态痕量金属形态逐级提取程序进行了可靠性研究.结果表明,这一程序能以较高的准确度、精密度对土壤中各种形态的镉进行逐级提取.尽管各级分间有跨级现象,全部加标试样的平均镉回收率为97.93％.
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| 关 键 词： | 逐级提取 形态分布 镉 土壤 |
Reliability of Tessier's Fractional Extraction Procedure for Cadmium Species in Soil |
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| Chen Xuecheng.Reliability of Tessier's Fractional Extraction Procedure for Cadmium Species in Soil[J].Chinese Journal of Environmental Science,1991(6):25-28,36. |
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| Authors: | Chen Xuecheng |
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| Institution: | Department of Environmental Engineering Hebei Institute ot Light and Chemical Engineering, 050018, Shijiazhuang;Department of Environmental Engineering Hebei Institute ot Light and Chemical Engineering, 050018, Shijiazhuang;Department of Environmental Engineering Hebei Institute ot Light and Chemical Engineering, 050018, Shijiazhuang |
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| Abstract: | By quantitatively adding various chemical species of cadmium to soil sample GBW07401 (National Certified Reference Material of P. R. C.), the reliability of Tessier's sequential extraction procedure for the speciation analysis of trace metals was studied. It turns out that various fraction of cadmium in these samples could be extracted out with fairly good accuracy and precision. In spite of the fact that the transference from one fraction to another had taken place, the average recovery of added cadmium was determined to be 97.27%. |
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| Keywords: | sequential extraction speciation analysis cadmium in soil |
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