pseudo-first-order kinetics with respect to the concentration of 1. The pH-rate profile was linear with slopes -1 and +1 in acid and alkaline pH, respectively, becoming pH independent in the region of maximum stability from pH 4.5 to 10.0. Neither primary salt effects nor buffer catalysis was observed due to the buffer species employed.
广泛研究了2-(3,4-二甲基-5-
异恶唑基胺)-N-(3,4-二甲基-5-
异恶唑基)-
1,4-萘醌-4-
亚胺(1)的
水解降解pH值和在不同温度下的变化。通过反相HPLC测定降解速率,并观察到其相对于1的浓度遵循拟一级动力学。pH速率曲线在酸性和碱性pH值下分别呈-1和+1斜率线性关系。在pH值从4.5到10.0的最大稳定性范围内变为pH无关。由于所使用的缓冲剂种类,未观察到伯盐效应或缓冲剂催化作用。