Abstract
The intense sensitization of terbium luminescence with copper(II) ions was observed in the Tb–Cu mixed-metal complex of 1.5-bis(2-hydrazinocarbophenoxy)-3-oxapentane (HCPhO) with the ratio Tb : Cu : HCPhO = 1 : 1 : 1. Other d-block metals produced no sensitizing effect. The effect observed was used for the luminescence determination of trace copper in the presence of 1000-fold amounts of Mn(II), Fe(III), Co(II), Ni(II), Zn(II), and Cd(II). The accuracy of determining copper was verified by the analysis of Certified Reference Materials of zinc- and nickel-based alloys.
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Meshkova, S.B., Topilova, Z.M., Gorodnyuk, V.P. et al. Sensitization of the 4f-Luminescence of Terbium with Copper Ions and Its Analytical Application. Journal of Analytical Chemistry 59, 945–949 (2004). https://doi.org/10.1023/B:JANC.0000043910.69823.18
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DOI: https://doi.org/10.1023/B:JANC.0000043910.69823.18