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  

Determination of Eu in Long-Aferglow of the SrAl_2O_4:Eu^(2+), Dy^(3+) Phospher Samples by LMESA

作　　者：张金平[1] 张博[1] 郭庆林[1] 王文杰[1] 郭智[1] 怀素芳[1] 魏艳红[1] 

机构地区：[1]河北大学物理科学与技术学院,河北保定071002

出　　处：《光谱学与光谱分析》2005年第8期1325-1327,共3页Spectroscopy and Spectral Analysis

基　　金：河北省自然科学基金(A2004000127);河北省教育厅资助项目(2003129)

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)412.973nm为分析线,计算机拟合LogIf^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。A method for the determination of Eu in Long-aferglow of the SrAl2O4 ：Eu^2＋ , Dy^3＋ 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 ： Eu^2＋ , Dy^3＋ phospher samples, using the Eu（ Ⅱ ） line at 412.973 nm, show that RSD of relative intensity of spectral lines is 4.3%, RSDof 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 ：Eu^2＋ , Dy^3＋ phospher samples synthesized by high temperature solid phase reaction has an obvious increase.

关 键 词：激光微区发射光谱分析 长余辉材料 SRAL2O4:EU^2+ DY^3+ EU 

分 类 号：O657[理学—分析化学]