论文部分内容阅读
在卤素离子存在下,考察了富马酸酮替芬-Ru(bpy)32+体系在金电极上的电化学及其发光行为。结果表明:Br-对富马酸酮替芬-Ru(bpy)32+体系在金电极上发光行为具有显著的促进和增敏作用。据此,建立了一种高效、简便的富马酸酮替芬检测的新方法。在最佳实验条件下,富马酸酮替芬在1.0×10-4～1.0×10-7mol/L浓度范围内与相对发光强度呈线性关系,回归方程为I(counts)=1.73×108c+188.15(R2=0.9989),检出限(S/N=3)为4.29×10-8mol/L,连续平行测定富马酸酮替芬溶液(1×10-5mol/L)6次,发光强度的RSD为4.7%。回收率在99.5%～105.0%之间,RSD为2.3%(n=5)。该方法用于实际样品的测定,结果满意。
In the presence of halide ions, the electrochemical and luminescent properties of ketotifen-Ru (bpy) 32 fumarate on gold electrode were investigated. The results showed that Br-promoted the sensitization and sensitization of ketotifen-Ru (bpy) 32 fumarate on the gold electrode. Based on this, a new method for the determination of ketotifen fumarate has been established. Under the optimum conditions, ketotifen fumarate showed a linear relationship with the relative luminescence intensity in the concentration range of 1.0 × 10-4 ~ 1.0 × 10-7mol / L, the regression equation was I (counts) = 1.73 × 108c + (R2 = 0.9989). The detection limit (S / N = 3) was 4.29 × 10-8 mol / L, and the ketotifen fumarate solution (1 × 10-5mol / L) The RSD was 4.7%. The recoveries ranged from 99.5% to 105.0% with a RSD of 2.3% (n = 5). The method is applied to the determination of actual samples with satisfactory results.