论文部分内容阅读
本文以Nd;YAG激光器的三倍频输出为激发光源,硅增强靶型光学多道分析仪为检测器,研究了铕-二苯甲酰甲烷-氧化三正辛基膦(Eu-DBM-TOPO)体系的激光诱导发光特性、发光机理和影响荧光发射强度的因素。提出了该体系荧光发射过程的两步能量传递机制,拟定出用DBM-TOPO-Tween-60体系测定痕量铕的激光诱导荧光光谱分析方法。采用标准加入法测定了高纯稀土氧化物和合成水样中的痕量铕,结果令人满意。
In this paper, three-frequency output Nd: YAG laser as excitation light source, silicon enhanced target optical multi-channel analyzer as a detector, europium - dibenzoylmethane - trioctylphosphine oxide (Eu-DBM-TOPO ) System of laser-induced luminescence properties, luminescence mechanism and the factors that affect the fluorescence emission intensity. A two-step energy transfer mechanism was proposed for the fluorescence emission process of the system. A laser-induced fluorescence spectrometry method for the determination of trace europium with DBM-TOPO-Tween-60 system was proposed. The trace addition of trace europium in high purity rare earth oxides and synthetic water samples was determined by standard addition method and the results were satisfactory.