【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。更多还原

【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.更多还原