Colorimetric sensor for highly sensitive and selective detection of copper ion

doi:10.1039/c7ay01335c

	Colorimetric sensor for highly sensitive and selective detection of copper ion
	Gao, Qi 1,3; Ji, Ling 2; Wang, Qiaoning 3; Yin, Kun 3; Li, Jinhua 3; Chen, Lingxin 3
刊名	ANALYTICAL METHODS
	2017-09-21
卷号	9 期号:35 页码:5094-5100
ISSN号	1759-9660
DOI	10.1039/c7ay01335c
英文摘要	The copper ion (Cu2+), as a type of essential element, plays important roles in various metabolic processes of organisms. However, an excessive intake of Cu2+ can induce a series of diseases, such as Alzheimer's disease, Menkes disease and Wilson's disease. Therefore, it is urgently needed to develop an analytical method to achieve a simple and sensitive detection of Cu2+. In this study, a colorimetric sensor for the detection of Cu2+ with a high sensitivity and selectivity has been developed. The design of the colorimetric sensor is based on the inhibiting effect of Cu2+ on the reaction of L-cysteine with our established probe Cy-NB. A significant color change could be directly observed by the naked eye as the concentration of Cu2+ increases. The as-prepared colorimetric sensor has a high sensitivity with a low detection limit of 8.6 nM, and a distinguishing recognition selectivity for Cu2+ over other possibly coexistent metal ions. Moreover, the sensor was successfully utilized for the analysis of tap water, seawater and biosamples, and high recoveries at two spiking levels of Cu2+ ranged from 102 to 114%. The results were consistent with those obtained by ICP-MS, indicating that the developed colorimetric sensor has great application potential as a simple highly sensitive and selective detection method for Cu2+.
资助项目	National Natural Science Foundation of China[21477160] ; National Natural Science Foundation of China[21575159]
WOS研究方向	Chemistry ; Food Science & Technology ; Spectroscopy
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000411529300003
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/3078]
专题	自然资源部第一海洋研究所
作者单位	1.China Agr Univ, Oceanog Inst, Dept Aquaculture, Yantai Res Inst, Yantai 264000, Peoples R China; 2.State Ocean Adm, North China Sea Branch, Qingdao 266033, Peoples R China; 3.Chinese Acad Sci, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai Inst Coastal Zone Res, 17 Chunhui Rd, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Gao, Qi,Ji, Ling,Wang, Qiaoning,et al. Colorimetric sensor for highly sensitive and selective detection of copper ion[J]. ANALYTICAL METHODS,2017,9(35):5094-5100.
APA	Gao, Qi,Ji, Ling,Wang, Qiaoning,Yin, Kun,Li, Jinhua,&Chen, Lingxin.(2017).Colorimetric sensor for highly sensitive and selective detection of copper ion.ANALYTICAL METHODS,9(35),5094-5100.
MLA	Gao, Qi,et al."Colorimetric sensor for highly sensitive and selective detection of copper ion".ANALYTICAL METHODS 9.35(2017):5094-5100.