| 分光光度法测铈(Ⅳ)-乙醇配合物的组成 |
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| 引用本文： | 卢金凤,吴义芳,郁章玉,林宪杰,赵楠.分光光度法测铈(Ⅳ)-乙醇配合物的组成[J].广州化工,2010,38(7):144-144,153. |
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| 作者姓名： | 卢金凤 吴义芳 郁章玉 林宪杰 赵楠 |
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| 作者单位： | 菏泽学院化学与化工系,山东,菏泽,274015 |
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| 基金项目： | 山东省自然科学基金，菏泽学院博士基金 |
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| 摘 要： | 以硝酸铈铵和浓硝酸、无水乙醇为原料,配制等摩尔浓度的硝酸铈铵溶液以及乙醇溶液,再以此为原料根据等摩尔系列法配制铈(Ⅳ)-乙醇的配合物,然后,用分光光度计测量铈(Ⅳ)-乙醇的配合物的吸光度值。以AMR对nM/(nM+nR)作图,得到一条曲线,由图读出最大吸光度处所对应的金属离子的摩尔分数,从而计算出铈(Ⅳ)-乙醇的配合物的组成为1:1。
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| 关 键 词： | 硝酸铈铵 铈（Ⅳ）-乙醇的配合物 吸光度 等摩尔系列法 |
Determination of Complex Composition of Cerium(Ⅳ)-Ethanol by Spectrophotometry |
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| LU Jin-feng,WU Yi-fang,YU Zhang-yu,LIN Xian-jie,ZHAO Nan.Determination of Complex Composition of Cerium(Ⅳ)-Ethanol by Spectrophotometry[J].GuangZhou Chemical Industry and Technology,2010,38(7):144-144,153. |
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| Authors: | LU Jin-feng WU Yi-fang YU Zhang-yu LIN Xian-jie ZHAO Nan |
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| Affiliation: | (Department of Chemistry and Chemical Engineering,Heze University,Shandong Heze 274015,China) |
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| Abstract: | Equimolar concentration solutions of cerium ammonium nitrate and ethanol were prepared using cerium ammonium nitrate,concentrated nitric acid and pure ethanol as raw materials.Ce（Ⅳ）-ethanol complexes were prepared according to equimolar series method.The numerical values of absorbance of cerium（Ⅳ）-ethanol complex were measured by spectrophotometer.A graph was got by drawing AMR-nM/（nM＋nR） curve.The corresponding molar fraction of metal ions in the maximum absorbance can be read from AMR-nM/（nM＋nR） graph and therefore Ce（Ⅳ）-ethanol complex composition was calculated to be 1：1. |
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| Keywords: | cerium ammonium nitrate cerium（Ⅳ）-ethanol complex absorbance equimolar series method |
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