节点文献
硫堇-甲苯二异氰酸酯衍生物修饰的玻碳基乙醇传感器的研究
A Reagentless Alcohol Sensor Based on Thionine-TDIModified Glassy Carbon Electrode
【摘要】 硫堇-甲苯二异氰酸酯衍生物修饰的玻碳基乙醇传感器的研究俞爱民,韩吉林,杨可盛,陈洪渊(南京大学化学系,南京,210093)关键词硫堇-TDI衍生物,NAD~+,ADH,乙醇传感器经典的测定乙醇含量的方法有气相色谱法[1]、分光光度法[2].近年来,随?..
【Abstract】 Alcohol dehydrogenase(ADH) and the oxidized form of nicotinamide adenine dinucleotide(NAD+) were cross-linked directly in aid of the reaction of thionine and toluene diisocyanate(TDI) on the surface of glassy carbon electrode to yield a reagentless alcohol sensor. The NAD+ was converted to NADH by oxidation of alcohol catalyzed by ADH and the NADH formed was oxidized electrochemically to the original NAD+ by thionine-TDI mediator, thus giving the catalytic current for target analysis. The peak current was linearly related to the concentration of alcohol in the range of 1-15 mmol/L. The influence of various experimental conditions was also explored for optimum analytical performance.The sensor remains relatively stable for about 15 days.
- 【文献出处】 高等学校化学学报 ,CHEMICAL RESEARCH IN CHINESE UNIVERSITIES , 编辑部邮箱 ,1995年08期
- 【分类号】O623.411
- 【被引频次】1
- 【下载频次】97