| 偏最小二乘分光光度法同时测定混合稀土氧化物中的Eu、Sm、Pr、Ho、Tm和Nd |
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| 引用本文： | 余建平,李蕾,刘小明,黄振泉.偏最小二乘分光光度法同时测定混合稀土氧化物中的Eu、Sm、Pr、Ho、Tm和Nd[J].赣南师范学院学报,1996(6). |
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| 作者姓名： | 余建平 李蕾 刘小明 黄振泉 |
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| 作者单位： | 赣南师范学院化学化工系!赣州341000 |
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| 摘 要： | 本文研究了EGTA和DTPA对稀土元素可见光区的吸收光谱的增敏作用.采用偏最小二乘(PLS)分光光度法拟定在DTPA—六次甲基四胺体系中测定Eu、Sm和Pr、Ho;在EGTA—六次甲基四胺体系中测定Tm.Nd.实验结果表明对合成样品的测定相对误差均小于6%,回收率为94～105%,混合稀土样品测定结果与x—荧光配分值相比较相对误差小于10%,本方法适合于一般的工业分析,用于测定指定的六个稀土元素,设备简单,操作方便.
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| 关 键 词： | PLS法 分光光度法 稀土元素 |
DETERMINATIONOF Eu、Sm、Pr、Ho、Nd、Tm OF THE MIXED RARE-EARTH BY PANTIAL LEASF SQURES SPURES SPECTROPHOTOMETRIC METHOD |
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| Yu Jianping,Li Lei,Liu XiaoMing,Hangzhengquan.DETERMINATIONOF Eu、Sm、Pr、Ho、Nd、Tm OF THE MIXED RARE-EARTH BY PANTIAL LEASF SQURES SPURES SPECTROPHOTOMETRIC METHOD[J].Journal of Gannan Teachers' College(Social Science(2)),1996(6). |
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| Authors: | Yu Jianping Li Lei Liu XiaoMing Hangzhengquan |
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| Abstract: | The enhancement of the visible range absorption spectrum of rare earth elemenfs with EGTA and DTPA has been studied in this paper, Eu-Sm and Pr -Ho defermined in a system of DTPA-hexamthylena-mine ,Nd -Tm are defermined in a system of EGTA-hexamthylenamine by Partial least squares spectropho-tometric methed ,The results show that the relative errorP of synthetic samples is below 6% and the recovery percentage is betreen 94 -105%. Compared with the determined results of x-ray fluorometric anghlysis detector ,the relative error of the determined results of the mixed rare earth samples is below 10%,This methoed is satisfacfory with the reqirement of industical analysis,The equipments are simple and the procedure is convenient by testing six tyres of rare-earth. |
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| Keywords: | Partial Least squres spectrophotometry Mixed rare-earth |
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