CAJ | 학술논문

采用循环伏安法制备了铁氰化锰-过氧化聚吡咯（ MnHCF/PPyox/CCE ）修饰电极，研究了MnHCF/PPyox/CCE电极对肼的电催化行为。结果表明，MnHCF在PPyox/CCE电极和裸电极上的沉积过程不同，且该修饰电极对肼有良好的电催化活性，响应时间短（ t<2 s）。在优化条件下，安培法检测肼的线性范围为2.0×10-7~2.3×10-3mol·L-1（R=0.9993），检出限（3 Sb）为8.0×10-8 mol·L-1，该法已用于模拟水样中肼的测定。
채용순배복안법제비료철청화맹-과양화취필각（ MnHCF/PPyox/CCE ）수식전겁，연구료MnHCF/PPyox/CCE전겁대정적전최화행위。결과표명，MnHCF재PPyox/CCE전겁화라전겁상적침적과정불동，차해수식전겁대정유량호적전최화활성，향응시간단（ t<2 s）。재우화조건하，안배법검측정적선성범위위2.0×10-7~2.3×10-3mol·L-1（R=0.9993），검출한（3 Sb）위8.0×10-8 mol·L-1，해법이용우모의수양중정적측정。
A manganese hexacyanoferrate( MnHCF)film modified ceramic carbon composite electrode of peroxide polypyrrole was fabricated by using cyclic voltammetry. The paper investigated the electrochemical behavior of hy-drazine in MnHCF/ PPyox/CCE electrode and determinated microscale hydrazine by using the single electron-cur-rent chronopotentiometric method in MnHCF/PPyox/CCE electrode. The experimental results showed that the resul-ting electrode exhibited high sensitivity towards the reduction of hydrazine. Under the optimal conditions,the oxida-tion peak current showed a linear relationship with the concentration of hydrazine in the range from 2 . 0 × 10 -7 to 2 . 0 × 10 -3 mol/L with a correlation coefficient of 0. 9997 and a detection limit(3 Sb )of 8. 0 × 10 -8 mol/L. This method had been applied to the determination of hydrazine in stimulant water samples.