Permselectivity　of　4－Aminophenol，Paracetanol　and　Phenacetin　on　the　Self－Assembled　n－Alkanethiol　Monolayer　Modified　Gold　Electrode  

作　　者：Li Jing-hong LIU Zhi-ming DONG Shao-jun and WANG Er-kang(Laboratory of Electroanalytical Chemistry,Changchun inuitute of Applied Chemistry,Chinese Academy of Science,Changchun,130022) 

出　　处：《Chemical Research in Chinese Universities》1996年第4期340-347,共8页高等学校化学研究（英文版）

摘　　要：The gold electrodes coated by n-alkanethiol with various chain lengths were used to study the permeability of uric acid,ascorbic acid,4-aminophenol,paracetanol and phenacetin by means of linear sweep voltammetry.The results show that the optimum chain length is n=10.The improvements in the selectivity and the stability of the amperometric detection of these compounds in a flow stream were obtained by n-alkanethiol self assembled monolayers modified electrodes based on their differences in the hydrophobicity and the permeability.The gold electrodes coated by n-alkanethiol with various chain lengths were used to study the permeability of uric acid,ascorbic acid,4-aminophenol,paracetanol and phenacetin by means of linear sweep voltammetry.The results show that the optimum chain length is n=10.The improvements in the selectivity and the stability of the amperometric detection of these compounds in a flow stream were obtained by n-alkanethiol self assembled monolayers modified electrodes based on their differences in the hydrophobicity and the permeability.

关 键 词：s:Permselectivity Self-assembled monolayer HYDROPHOBICITY Phenacetin.Paracetanol 4-Aminophenol 

分 类 号：O625[理学—有机化学]