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本文研究了Tb(Ⅲ)-1,4-双(′-苯基-3′-甲基-5′-氧代吡唑-4′-基)丁二酮-[1,4](BPMPBD)-溴化十六烷基三甲胺(CTMAB)体系的荧光性质,探讨了响影体系荧光性质的诸因素,确定了最佳实验条件。该体系中Tb(Ⅲ)浓度以2.0×10~(-5)～1.0×10~(-10)mol/L范围内与其荧光强度呈线性关系,检测限可达到5.0×10~(-11)mol/L。应用于合成样品中微量Tb(Ⅲ)的分析,结果令人满意。
The effects of Tb (Ⅲ) -1,4-bis (’-phenyl-3’-methyl-5’-oxopyrazol- - cetyltrimethyl ammonium bromide (CTMAB) system of fluorescence properties of the fluorescence system to explore the fluorescence of the factors that determine the best experimental conditions. The concentration of Tb (Ⅲ) in the system has a linear relationship with the fluorescence intensity in the range of 2.0 × 10 -5 to 1.0 × 10 -10 mol / L with the detection limit of 5.0 × 10 ~ (-11) mol / L. It has been applied to the analysis of trace Tb (Ⅲ) in synthetic samples with satisfactory results.