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研究了Tb(Ⅲ)-BPMPHD-CTMAB体系的荧光性质,探讨了荧光体系的组成及影响因素,建立了在该体系中测定Tb(Ⅲ)的新方法。检测限可达到3.0×10~(-11)mol/L,应用于合成样品中微量Tb(Ⅲ)的测定,结果满意。
The fluorescence properties of Tb (Ⅲ) -BPMPHD-CTMAB system were studied. The composition and influential factors of the fluorescence system were discussed. A new method for the determination of Tb (Ⅲ) in the system was established. The detection limit can reach 3.0 × 10 ~ (-11) mol / L, which is suitable for the determination of trace Tb (Ⅲ) in synthetic samples with satisfactory results.