Ultrahigh sensitivity electroanalysis of trace As(III) in water and human serum via gold nanoparticles uniformly anchored to Co3O4 porous microsheets

doi:10.1016/j.electacta.2020.137605

	Ultrahigh sensitivity electroanalysis of trace As(III) in water and human serum via gold nanoparticles uniformly anchored to Co3O4 porous microsheets
	Li, Chun-Yang 1; Wei, Yuan-Yuan 1; Shen, Wei 2; Dong, Xuan 1; Yang, Meng 2; Wei, Juan 1
刊名	ELECTROCHIMICA ACTA
	2021-02-01
卷号	368
关键词	AuNPs/Co3O4 nanocomposites Electroanalysis of As(III) Ultrahighly sensitive Stability and anti-interference Water and human serum
ISSN号	0013-4686
DOI	10.1016/j.electacta.2020.137605
通讯作者	Yang, Meng(myang@iim.ac.cn) ; Wei, Juan(weijuan405@163.com)
英文摘要	The construction of ultrahighly sensitive electrochemical sensing interfaces is essential for the accurate determination of trace-level arsenic(III) (As(III)) due to its severe toxicity. In this report, an ultrahighly sensitive electrochemical sensor was constructed for the electroanalysis of As(III) by the uniform assembly of gold nanoparticles on porous cobaltosic oxide (Co3O4) microsheets (AuNPs/Co3O4 nanocomposites). The developed sensor-modified screen-printed carbon electrode (SPCE) detected As(III) by using square wave anodic stripping voltammetry (SWASV) with an ultrahigh sensitivity of 12.1 +/- 0.2 mu A ppb(-1) and a low limit of detection (LOD) of 0.09 ppb (S/N = 3). The strong electrochemical performance is attributed to the high adsorption capacity of porous Co3O4 microsheets and the favorable electrocatalysis of in situ AuNPs toward As(III) reduction. In addition, the proposed method demonstrates satisfactory anti-interference performance in the presence of other metal ions (Cu(II), Pb(II), Cd(II), Zn(II), Hg(II), Ca(II), Fe(III), Mg(II), Mn(II), and Ni(II)). Robust stability and reproducibility were also realized. Most importantly, the electrochemical sensor was successfully applied to the electroanalysis of As(III) in water and human serum samples. The results of this study provide new insights into the design of sensitive and stable electrochemical sensing interfaces for the accurate analysis of trace levels of As(III) in practical applications. (C) 2020 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[21607004] ; Anhui Medical University[XJ201527] ; early contact scientific research training program of clinical medicine major of Anhui Medical University[2019-ZQKY-55] ; open subject of key laboratory of food safety analysis and detection in Anhui Province ; Key Lab of Photovoltaic and Energy Conservation Materials, Chinese Academy of Sciences[PECL2019KF020] ; Natural Science Foundation of Anhui Province[2008085QB79] ; China National Postdoctoral Program for Innovative Talents[BX20180311] ; China Postdoctoral Science Foundation[2019M652220] ; Postdoctoral Researcher Funding Project of Anhui Province[20186244]
WOS关键词	GLASSY-CARBON ELECTRODE ; ELECTROCHEMICAL SENSING ARSENIC(III) ; ANTI-INTERFERENCE ; SELECTIVE DETECTION ; NANOPOROUS GOLD ; SURFACE ; NANOSHEETS ; MICROELECTRODE ; ARSENITE ; SPECIATION
WOS研究方向	Electrochemistry
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000608745500018
资助机构	National Natural Science Foundation of China ; Anhui Medical University ; early contact scientific research training program of clinical medicine major of Anhui Medical University ; open subject of key laboratory of food safety analysis and detection in Anhui Province ; Key Lab of Photovoltaic and Energy Conservation Materials, Chinese Academy of Sciences ; Natural Science Foundation of Anhui Province ; China National Postdoctoral Program for Innovative Talents ; China Postdoctoral Science Foundation ; Postdoctoral Researcher Funding Project of Anhui Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/119823]
专题	中国科学院合肥物质科学研究院
通讯作者	Yang, Meng; Wei, Juan
作者单位	1.Anhui Med Univ, Sch Publ Hlth, 81 Meishan Rd, Hefei 230032, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Environm Mat & Pollut Control Lab, HFIPS, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Li, Chun-Yang,Wei, Yuan-Yuan,Shen, Wei,et al. Ultrahigh sensitivity electroanalysis of trace As(III) in water and human serum via gold nanoparticles uniformly anchored to Co3O4 porous microsheets[J]. ELECTROCHIMICA ACTA,2021,368.
APA	Li, Chun-Yang,Wei, Yuan-Yuan,Shen, Wei,Dong, Xuan,Yang, Meng,&Wei, Juan.(2021).Ultrahigh sensitivity electroanalysis of trace As(III) in water and human serum via gold nanoparticles uniformly anchored to Co3O4 porous microsheets.ELECTROCHIMICA ACTA,368.
MLA	Li, Chun-Yang,et al."Ultrahigh sensitivity electroanalysis of trace As(III) in water and human serum via gold nanoparticles uniformly anchored to Co3O4 porous microsheets".ELECTROCHIMICA ACTA 368(2021).