| Oscillating chemical reaction has been of long standing, the extensive studies of which and nonlinear chemical dynamics related with this have attracted considerable attention of researchers in recent two decades. Furthermore, analysis operators pay more attention to B-Z oscillating chemical reaction, which is considered to be an optimum object of experimental study and theoretical analysis. This dissertation reports the determination of p-nitroaniline and o-, m-, p-phenylenediamine by using non-equilibrium stationary state and regular oscillation of tartrate-acetone double substrate oscillating system respectively, and summaries the perturbation regularity of aniline and some of its derivates on Mn(II) catalyzed B-Z oscillating system. It includes four parts.Part I: IntroductionClassifications and occurrence conditions of B-Z oscillating chemical system are introduced in detail. Determination principles of different behaviors in chemical oscillation are described in brief, and their applications in analytical determination in recent years are also reviewed.Part II: Determination of p-nitroaniline by the tartrate-acetone-Mn2+-KBrO3- H2SO4 double organic substrate oscillating system using non-equilibrium stationary stateA highly sensitive method is proposed for the determination of p-nitroaniline by using non-equilibrium stationary state of tartrate-acetone-Mn2+-KBrO3-H2SO4 double organic substrate oscillating system. Under the optimum conditions, temperature was chosen as a control parameter to design the bifurcation point. Results showed that the system consisting of 3.5mL 0.06 mol·L-1 tartrate, 4.0mL 0.7 mol·L-1 H2SO4, 1.5mL 1.5×10-4 mol·L-1 MnSO4, 4.0mL 0.4 mol·L-1 acetone and 7.0mL 0.05 mol·L-1 KBrO3 was very sensitive to the surrounding at 33.5℃. A well linear relationship between the potential difference and the negative logarithm concentration of p-nitroaniline was obtained to be in the range of 2.50×10-73.75×10-5 mol·L-1 with a lower detection limit of 2.50×10-8 mol·L-1.Part III: Perturbation of aniline and its derivates on Mn(II)-catalyzed B-Z oscillating chemical systemThe perturbation of aniline and three its derivates on B-Z oscillating chemical system catalyzed by Mn(II) was investigated. It was found that disturbance caused by p-phenylenediamine was the biggest one, the next was aniline and that of p-nitroaniline was the smallest among them. Perturbation mechanism was discussed and the results indicated that the analytes mainly took place electrophilic substitution reaction with Br2 in the system. Furthermore, the higher the electron density of ring of aniline compounds, the bigger change in oscillating amplitude was.Part IV: Determination of o-, m-, p-phenylenediamine by using regular oscillation of tartrate-acetone double organic substrate oscillating systemA new method for the determination of o-, m-, p-phenylenediamine is established that is based on the perturbation of tartrate-acetone-Mn2+-KBrO3-H2SO4 double organic substrate oscillating system with different amounts of them. Results showed that a well linear relationship was existed between the potential difference and the negative logarithm concentration of o-, m-, p-phenylenediamine in the range of 5.00×10-73.75×10-5 mol·L-1, 1.00×10-51.00×10-3 mol·L-1 and 5.00×10-6 1.00×10-3 mol·L-1, with the correlation coefficients were 0.9992, 0.9990 and 0.9989, respectively. The detection limit of 2.50×10-8 mol·L-1, 1.00×10-6 mol·L-1 and 5.00×10-7 mol·L-1 were also obtained. At the same time, a possible perturbation mechanism was discussed in brief.
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