期刊
SPECTROSCOPY LETTERS
卷 49, 期 5, 页码 319-325出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/00387010.2016.1144074
关键词
Ascorbic acid; dopamine; fluorescence; graphene quantum dots; uric acid
类别
资金
- Shiraz University Research Council
Graphene quantum dots were synthesized by control carbonization of citric acid and utilized for selective determination of dopamine in the presence of ascorbic and uric acids. The prepared graphene quantum dots were characterized by X-ray diffraction, transmission electron microscopy, and Fourier transform infrared, ultraviolet-visible and fluorescence spectroscopy. The results revealed that dopamine could quench the fluorescence of graphene quantum dots through a dynamic quenching mechanism. Under the optimized conditions, the linear concentration range was obtained within 0.01-50.0 mu M, with the correlation coefficient of 0.9983 and a limit of detection of 8.2 nM. This method does not show any interference with respect to coexisting foreign substances, even at the presence of 500-fold of ascorbic acid and uric acid.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据