欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
多壁碳纳米管-二（十六烷基）磷酸复合物修饰的丝网印刷电极（MWNTs-DHP-SPCE）应用于核黄素（RF）电化学行为研究.该电极反应受吸附控制,是等电子等质子的过程,其电子转移速率常数k0为2.8 s-1.循环伏安（CV）表明是MWNTs有效增强RF的溶出峰电流.采用方波伏安（SWV）对RF进行吸附溶出分析,开路电位下10 m in预富集,检出限可以达到4.2×10^-9mol/L（S/N=3）.该方法还成功应用于多种维生素药片中RF含量的测定.
英文摘要：
The electrochemical behavior of riboflavin （RF） at multi - walled carbon nanotubes - dihexadecyl phosphate composite modified screen - printed electrodes （ MWNTs - DHP - SPCEs ） was studied. The redox reaction of RF at MWNTs - DHP - SPCEs was a typical adsorptive - controlled process, involving equal numbers of electron and proton. The standard electron transfer rate constant k^0 was 2.8 s^-1. Square wave voltammetry （SWV） was employed for adsorptive stripping analysis of RF. With 10 min accumulation at open circuit, the detection limit of 4.2 ×10^-9 mol/L（ S/N = 3） could be obtained. The novel method was successfully applied to determination of RF in multi - vitamin tablets.
同期刊论文项目
同项目期刊论文
期刊信息
位置：