期刊
ANALYTICAL LETTERS
卷 46, 期 9, 页码 1394-1403出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/00032719.2013.764534
关键词
Chitosan; Graphene oxide; Nanocomposite; Selenium
资金
- National Natural Science Foundation of China [21275006, 20905001, 21071002, 21175001, 21071001, 51142011]
- Anhui Research Project [KJ2010A030]
A novel amplification system for electrochemiluminescence (ECL) was developed by combining graphene oxide (GO) and Se nanoparticles, in which the chitosan (CHIT) was used as improver. Based on a series of experiments, the influencing factors and mechanism for ECL emission were determined. Under optimal conditions, the GO/Se nanocomposite produced an intense ECL emission and maintained long-term ECL stability. Significantly, the electrode modified with GO/Se nanocomposite was used to detect the biomolecule dopamine (DA), and showed a linear range from 0.1 to 100 mu M, with a detection limit of 0.025 mu M.
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