教授
硕士生导师
教师拼音名称：Wang Zhiyi
学历：博士研究生
学位：工学博士
职称：教授
毕业院校：中国海洋大学
通讯/办公地址：
移动电话：
邮箱：
邮编：
最后更新时间：..
>>
>>
关键字：rhodamine B; DNA; recognition interaction; electrochemistry
摘要：The recognition interaction of rhodamine B (RB) with DNA was studied in pH 7.5 Britton-Robinson (B-R) buffer solution by electrochemical techniques. An irreversible oxidation peak at glassy carbon electrode was obtained at +0.92V (vs. SCE). After the addition of DNA into the RB; solution, the peak current of RB decreased apparently without the shift of peak potential. The electrochemical parameters such as the charge transfer coefficient a and the electrode reaction standard rate constant k(s) of RB in the absence and presence of DNA were determined, which did not change, indicating that a non-electroactive complex was formed, so the concentration of RB in the solution decreased and the peak current decreased correspondingly.
卷号：16
期号：3
是否译文：否
