激光微区发射光谱分析法测定铝酸锶铕镝长余辉材料中的铕

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摘要：激光微区发射光谱分析法结合CCD光学多道分析仪测定了SrAl₂O₄:Eu²⁺, Dy³⁺长余辉材料中铕的含量，研究了该方法用于长余辉材料定量分析的准确性。实验中以Eu(Ⅱ) 412.973 nm为分析线，计算机拟合LogI_f～Logc工作曲线，对Eu的分析结果表明：分析谱线相对强度RSD为4.3%，定量分析相对标准偏差RSD为7.4%，分析结果的平均值为2.13%;采用高温固相反应法制备SrAl₂O₄:Eu²⁺, Dy³⁺长余辉材料，制备前后的Eu百分含量发生明显变化，高温合成后的长余辉材料中Eu百分含量明显增大。

关键词：激光微区发射光谱分析;长余辉材料;SrAl₂O₄:Eu²⁺;Dy³⁺;Eu

Abstract：A method for the determination of Eu in Long-aferglow of the SrAl₂O₄:Eu²⁺, Dy³⁺ phospher samples by laser microemission spectral analysis was developed.And the accuracy of this method was studied.Analyses of Eu in Long-aferglow of the SrAl₂O₄:Eu²⁺, Dy³⁺ phospher samples, using the Eu(Ⅱ) line at 412.973 nm, show that RSD of relative intensity of spectral lines is 4.3%, RSD of quantitative analysis is 7.4%, the average of quantitative analysis is 2.13%.Compared with the content before samples synthesized, it can be concluded that the content of Eu in the SrAl₂O₄:Eu²⁺, Dy³⁺ phospher samples synthesized by high temperature solid phase reaction has an obvious increase.

Key words：Laser microemission spectral analysis;Long-aferglow material;SrAl₂O₄:Eu²⁺;Dy³⁺;Eu

收稿日期: 2004-03-08 修订日期: 2004-06-06

中图分类号:

O657

通讯作者: 张金平

引用本文:

张金平，张博，郭庆林，王文杰，郭智，怀素芳，魏艳红 . 激光微区发射光谱分析法测定铝酸锶铕镝长余辉材料中的铕[J]. 光谱学与光谱分析, 2005, 25(08): 1325-1327.
ZHANG Jin-ping, ZHANG Bo, GUO Qing-lin, WANG Wen-jie, GUO Zhi, HUAI Su-fang, WEI Yan-hong. Determination of Eu in Long-Aferglow of the SrAl₂O₄:Eu²⁺, Dy³⁺ Phospher Samples by LMESA. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(08): 1325-1327.

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https://www.gpxygpfx.com/CN/Y2005/V25/I08/1325