目的:测定N,N’-二环己基-N-二十二碳酸酰脲解离常数。方法:采用紫外分光光度法及A—pH曲线法测定N,N’-二环己基-N-二十二碳酸酰脲解离常数。结果:紫外分光光度法测得N,N’-二环己基-N-二十二碳酸酰脲的pKa为7.16±0.24,A—pH曲线法求得pKa为6.98。
Objective: To determine the dissociation constant of N, N'-dicyclohexyl-N-docosanoyl urea. Methods: The dissociation constant of N, N'-dicyclohexyl-N-docosanoyl urea is detected by ultraviolet spectrophotometry(UV) and A -pH curves. Results: The dissociation constant of N, N'-dicyclohexyl-N-docosanoyl urea is 7.16 ±0. 24 by UV and 6. 98 by A -pH curves.