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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?.. 相似文献
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四氯苯醌自组装膜电子传递机制的研究 总被引:2,自引:0,他引:2
2,3,5,6-Tetrachloride-quinone was anchored to a gold surface through the self-assembled monolayers of dithiol [DT HS-(CH2)n-SH n=2,4,6,8,10]. The surface coverage of the anchored TQ was esteminated to be 4.9 ×10-11 mol•cm-2. The electron transfer rate constant Ket associated with the redox process of anchored film decreased from 6.75 s-1 at n=2 to 0.169 s-1 at n=10 with increasing the chain length of the DT SAMs througth the redox potential of TQ. The turning barrier coefficient(β) of the electron transfer was estimated to be 0.82Å-1 from the observed linear relationship between the Ket and the monolayer chain length. 相似文献
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