Theory and verify of Mensurate Cl~- Ion by Flow Injection-Cathodic Potentiometric Stripping Analysis

摘要

In this paper, the theoretical equation of flow injection-cathodic potentiometric stripping analysis for Cl~- ion determination was derived from theoretical analysis, and the experimental equation was summarized using multiple linear regression method. The result shows that the theoretical equation of flow injection-cathodic potentiometric stripping analysis for Cl~- ion is: (dt/dE)_(max) =K A_p r~(-1/2) D~(2/3) v~(-1/6)V_f~(1/2)t_eCx~-/i_s; that the experimental equation of multiple linear regression method is: (dt/dE)_(max) Cl~-≈1.86×10~(10) V_f~(0.568) t_eC Cl~-/i_s. The two results are similar on V_f-average flow rate, t_e-concentrate time, C Cl~- -Cl~- ion concentration and is -constant current.