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本工作是在自建装置上，利用时间分辨激光荧光光谱技术，选择Ｅｕ－ＴＴＡ－ＥｔＯＨ液体荧光体系，建立了时间分辨激光荧光测定铕的方法。该法测定铕离子的线性范围为０．０００２～１０μｇ／ｍｌ，检测限为１０－５μｇ／ｍｌ。０．０３μｇ／ｍｌＥｕ３＋标准样品ＥｕＴＴＡ３，测定的相对标准偏差为４．７％（ｎ＝１２），该法用于实际样品的分析测定，结果满意。结合铕的分析，对本方法选择化学体系的条件、测定装置的参数进行了讨论。并获得了一些基本实验数据。
This work is to establish a method for the determination of europium by time-resolved laser fluorescence spectroscopy using time-resolved laser fluorescence spectroscopy and Eu-TTA-EtOH liquid fluorescence spectroscopy on self-built devices. The linear range of this method for the determination of europium ions is 0.0002 ~ 10μg / ml with the detection limit of 10-5μg / ml. 0.03μg / ml Eu3 + standard sample EuTTA3, the relative standard deviation of determination was 4.7% (n = 12). The method was applied to the analysis of real samples and the results were satisfactory. In combination with the analysis of europium, the conditions for selecting the chemical system in this method and the parameters of the measuring apparatus are discussed. And obtained some basic experimental data.