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铕-镧-诺氟沙星-十二烷基磺酸钠稀土共发光体系的研究及分析应用

Co-luminescence Effect of Eu³⁺-La³⁺ -Norflorxacin-Sodium Dodecyl-Sulfonate System and its Analytical Application

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【Author】 Wu Xia, Ran Dehuan, Han Yunxiao, Guo Changying, Ding Honghong, Yang Jinghe (Key Laboratory of Colloid and Interface Chemistry, Shandong University, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100)

【机构】教育部胶体与界面化学重点实验室；教育部胶体与界面化学重点实验室山东大学化学与化工学院；济南250100；山东大学化学与化工学院；

【摘要】利用荧光光度法研究了铕-镧-诺氟沙星-十二烷基磺酸钠体系的稀土共发光效应,并对其作用机理进行了探讨。研究了本体系测定Eu3+的最佳条件,结果表明,体系的荧光强度与Eu3+的浓度在1·0×10-10~5·0×10-7mol/L范围内呈良好的线性关系,其检出限为2·0×10-12mol/L。采用标准加入法测定混合稀土样品中的Eu3+,结果令人满意。更多还原

【Abstract】 In this study, the co-luminescence effect of Eu~ 3+ -La~ 3+ -norflorxacin(NFLX)-sodium dodecylsulfonate(SDS) system was studied and the luminescence mechanism of the system was discussed. The effects of various factors on the system were investigated in detail. Under optimum conditions, a linear relationship was obtained between the fluorescence intensity and the Eu~ 3+ concentration in the range of 1.0×10~ -10 -5.0×10~ -7 mol/L. The detection limit of Eu~ 3+ was 2.0×10~ -12 mol/L. This system was used for the determination of europium in the rare earth sample with satisfactory results.更多还原