| 负载茜素红S活性炭富集分离-分光光度法测定水中痕量的钼 |
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| 引用本文： | 刘奇,冯传玲,刘改霞,王爱军. 负载茜素红S活性炭富集分离-分光光度法测定水中痕量的钼[J]. 河南师范大学学报(自然科学版), 2010, 38(1) |
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| 作者姓名： | 刘奇 冯传玲 刘改霞 王爱军 |
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| 作者单位： | 河南师范大学,化学与环境科学学院,河南,新乡,453007;河南师范大学,化学与环境科学学院,河南,新乡,453007;河南师范大学,化学与环境科学学院,河南,新乡,453007;河南师范大学,化学与环境科学学院,河南,新乡,453007 |
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| 摘 要： | 研究了用活性炭对水中痕量钼进行预富集的新方法,探讨了方法的最佳条件,结果表明,在酸性介质中,钼(VI)能很好的吸附在负载有茜素红S的活性炭上,在碱性环境中能够解吸,排除了碱土金属及Ti(IV),Fe(III),Co(II),Ni(II),Cu(II),Cd(II),Mn(II),Hg(II),Pb(II),Sn(II)和Al(III)等常见阳离子的干扰.该方法简便,选择性好,灵敏度高,用于水样中痕量钼的测定.样品加标回收率为96.4%.
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| 关 键 词： | 活性炭 分离富集 钼 茜素红S |
Sepectrophometric Determination of Molybdenum in Water Enriched by Activated Carbon Carried Alizarin Red S |
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| Abstract: | A simple,accurate,sensitive and selective method is described for rapid determination of ultra-trace quantities of molybdenum. Molybdenum (VI) is collected on activated carbon (AC) loaded with Alizarin Red S at pH 2.0; the collected molybdenum is desorbed by sodium hydroxide,and then it can be determined by sepectrophometer. However,alkaline-earth metals and familiar metal cations,such as Ti(IV),Fe(Ш),Co(II),Ni(II),Cu(II),Cd(II),Mn(II),Hg(II),Pb(II),Sn(II),Al(Ш) are not interfered under this condition. This method is used to determine Mo(VI) in natural water with satisfactory results. The recovery of molybdenum (VI) is 96.4%. |
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| Keywords: | activated carbon separation and enrichment molybdenum alizarin Red S |
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