| 土壤锌、铜、铁、锰形态区分方法的选择 |
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| 引用本文： | 蒋廷惠,胡霭堂,秦怀英.土壤锌、铜、铁、锰形态区分方法的选择[J].环境科学学报,1990,10(3):280-286. |
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| 作者姓名： | 蒋廷惠 胡霭堂 秦怀英 |
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| 作者单位： | 南京农业大学土化系
(蒋廷惠，胡霭堂)，南京农业大学土化系(秦怀英) |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 用化学连续提取的方法将土壤中的锌、铜、铁、锰依结合状态区分为交换态、碳酸盐结合态(石灰性土壤)、氧化锰结合态、有机结合态、无定形氧化铁结合态、晶形氧化铁结合态和硅铝酸盐矿物态.初步认为选定的形态及提取方法适于土壤中锌、铜、铁、锰等元素的研究.
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| 关 键 词： | 微量元素 形态 提取方法 |
| 收稿时间： | 1989/3/18 0:00:00 |
FRACTIONATION OF SOIL ZINC,COPPER, IRON AND MANGANESE |
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| Jiang Tinghui,Hu Aitang and Qin Huaiying.FRACTIONATION OF SOIL ZINC,COPPER, IRON AND MANGANESE[J].Acta Scientiae Circumstantiae,1990,10(3):280-286. |
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| Authors: | Jiang Tinghui Hu Aitang and Qin Huaiying |
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| Institution: | Department of Soil Science and Agricultural Chemistry, Nanjing Agricultural University,Department of Soil Science and Agricultural Chemistry, Nanjing Agricultural University and Department of Soil Science and Agricultural Chemistry, Nanjing Agricultural University |
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| Abstract: | A sequential extraction procedure was developed for fractionation of soil Zn, Cu, Fe and Mn. Seven fractions separated are exchangeable( 1 mol/L MgCl2,pH 7.0), bound to carbonates (1 mol/L NaOAc-HOAc, pH 5.0) , bound to manganese oxides (0.1 mol/L NH,OH·HC1 pH 2.0) , bound to organic matter( concentrated H2O2-1 mol/L MgCl2), bound to amorphous iron oxides(0.175 mol/L (NH4)2C2,0.4-0.14 mol/L H2C2O2 pH 3.25),bound to crystalline iron oxides(0.04 mol/L NH2OH·HCl-25% HO-Ac) and in primary and secondary minerals (HClO4-HF) .The extraction order and conditions discussed. Most fractions were in good correlation with soil properties. |
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| Keywords: | trace elements fractionation soil |
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