Chem. J. Chinese Universities ›› 1987, Vol. 8 ›› Issue (12): 1067.
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Zhu Guiyun, Yang Jinghe, Ge Wen, Wang Lei
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Abstract: A co-luminescence effect of Sm-Tb-TTA-phenanthroline(phen) system was first studied. We observed a new fluorescence-enhanced phenomenon, which occurred by adding some of rare earths to above system. Amony them, Tb3+increases the fluorescence intensity of Sm-TTA-phen system by 2 orders of magnitude.The optium conditions to form the system are as follows: concentration of Tb3+is equal to 1-2×10-5M, and pHis 5.5-7.0. The enhancement effect can be used for the determination of ultratrace amounts of Sm3+, the detection limit is 2.5×10-11M.
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Zhu Guiyun, Yang Jinghe, Ge Wen, Wang Lei . Studies on Co-luminescence Effect of Rare Earths(Ⅱ)--The Co-luminescence Effect of Sm-Tb TTA-Phenanthroline-System and Its Analytical Application[J]. Chem. J. Chinese Universities, 1987, 8(12): 1067.
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http://www.cjcu.jlu.edu.cn/EN/Y1987/V8/I12/1067
