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在混合表面活性剂CTMAB和Tween80存在下 ,研究了 3,5 二溴水杨基苯基荧光酮 (DBH PF)与锆 (IV)的显色反应光度特性 ,并讨论了胶束增敏机理 .在 0 .32mol/LHCl介质中 ,DBHPF与锆 (IV)及表面活性剂形成胶束络合物 ,最大吸收波长位于 5 32nm处 ,混合表面活性剂有一定的增敏作用 ,络合物表观摩尔吸光系数为 1.4 6× 10 5L·mol- 1·cm- 1.锆 (IV)含量在 0～ 0 .32 μg/ml范围服从比尔定律 .拟定分析方法用于低合金钢中微量锆的测定 ,结果满意 .
In the presence of mixed surfactants CTMAB and Tween80, the photometric properties of 3,5-dibromosalicylal phenylfluorone (DBH PF) and zirconium (IV) were studied. The mechanism of micelle sensitization was also discussed. In 0.32mol / LHCl medium, DBHPF and zirconium (IV) and surfactant form micellar complexes, the maximum absorption wavelength at 532nm, mixed surfactants have a sensitizing effect, the apparent molar ratio of complex The Absorbance coefficient is 1.4 6 × 10 5 L · mol -1 · cm -1. Beer’s law is obeyed in the range of 0-0.32 μg / ml for Zirconium (IV). The proposed method is applied to the determination of trace zirconium in low alloy steel Satisfactory results.