A new strategy to improve the sensitivity and selectivity of dopamine   detection

doi:10.1007/s11426-014-5300-y

CORC > 北京大学 > 化学与分子工程学院

	A new strategy to improve the sensitivity and selectivity of dopamine detection
	Xie, Xiang ; Gu, Jing ; Zhao, Wenbo ; Liu, Shujuan ; Qiao, Yonghui ; Zhu, Xinyu ; Yin, Xiaohong ; Zhu, Zhiwei ; Li, Meixian ; Shao, Yuanhua
刊名	SCIENCE CHINA-CHEMISTRY
	2015
关键词	dopamine detection graphene/OMimPF(6)gel-modified electrode electrochemical microextraction square-wave voltammetric stripping GLASSY-CARBON ELECTRODE IONIC LIQUID ASCORBIC-ACID URIC-ACID SOLVENT-EXTRACTION CYCLIC VOLTAMMETRY AQUEOUS-SOLUTIONS COMPOSITE FILM ELECTROCHEMISTRY GRAPHENE
DOI	10.1007/s11426-014-5300-y
英文摘要	We applied the combination of in situ electrochemical liquid-phase microextraction and square-wave voltammetric stripping analysis for the first time as a highly sensitive and selective approach for the detection of dopamine. A mixed gel of graphene sheets and an ionic liquid of 1-octyl-3-methylimidazolium hexaflurophosphate (OMimPF(6)) was used as a micro liquid-phase to pre-concentrate dopamine by controlled potential electrolysis from an aqueous solution (as a donor phase), followed by square-wave voltammetric stripping detection. Under optimized conditions, a linear calibration curve was obtained in the range of 0.05 to 1.0 mu mol/L in the presence of excess ascorbic acid and uric acid. The detection limit has been found to be 8.0 nmol/L (S/N=3).; National Natural Science Foundation of China [21335001, 21075004]; SCI(E); EI; ARTICLE; xiexiangster@163.com; yhshao@pku.edu.cn; 5; 892-898; 58
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/420366]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Xie, Xiang,Gu, Jing,Zhao, Wenbo,et al. A new strategy to improve the sensitivity and selectivity of dopamine detection[J]. SCIENCE CHINA-CHEMISTRY,2015.
APA	Xie, Xiang.,Gu, Jing.,Zhao, Wenbo.,Liu, Shujuan.,Qiao, Yonghui.,...&Shao, Yuanhua.(2015).A new strategy to improve the sensitivity and selectivity of dopamine detection.SCIENCE CHINA-CHEMISTRY.
MLA	Xie, Xiang,et al."A new strategy to improve the sensitivity and selectivity of dopamine detection".SCIENCE CHINA-CHEMISTRY (2015).