DICP OpenIR
A versatile fluorimetric chemosensor for mercury (II) assay based on carbon nanodots
Liang, Xiao-Chun1,2; Chen, Shuqin2; Gao, Jianmei2; Zhang, Hongyu1,2; Wang, Yu2; Wang, Ji-Hui1; Feng, Liang2
KeywordMercury Fluorimetric Chemosensor Carbon Nanodots
Source PublicationSENSORS AND ACTUATORS B-CHEMICAL
2018-07-15
ISSN0925-4005
DOI10.1016/j.snb.2018.01.182
Volume265Pages:293-301
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Analytical ; Electrochemistry ; Instruments & Instrumentation
WOS Research AreaChemistry ; Electrochemistry ; Instruments & Instrumentation
WOS KeywordATOMIC FLUORESCENCE SPECTROMETRY ; PLASMA-MASS SPECTROMETRY ; HG2+ DETECTION ; SELECTIVE DETECTION ; ULTRASENSITIVE DETECTION ; ABSORPTION-SPECTROMETRY ; GOLD NANOPARTICLES ; AQUEOUS-SOLUTION ; QUANTUM DOTS ; WATER
AbstractHuman urine mercury level functions as a pre-warning signal for mercury explosure, either in acute or chronic events. Unlike common hydrargyrism due to organic mercury uptake overproof via aquatic products, the risk of inorganic mercury toxication would be much higher for residents living in mercury related industry areas due to direct or indirect mercury wastewater emission to vicinal water system. In this work, we reported a novel fluorimetric chemosensor, 2,6-pyridinedicarboxylic acid-derived carbon nanodots (PECDs), which exhibits excellent versatility in direct inorganic Hg2+ detection. The fabrication was proved facile, inexpensive and eco-friendly. The morphology, chemical and spectral properties of PECDs were thoroughly investigated by using HRTEM, XPS, ATR-FTIR, UV-vis and fluorescent spectrum. PECDs showed a broad range of linearity between fluorescence intensity and Hg2+ concentration. The limit of detection was calculated as low as 75 nM. The sensing mechanism was investigated and assumed as fluorescence quenching originated from the formation of PECDs-Hg2+ complex, which facilitates the non radiative relaxation of surface emission of PECDs. In Hg2+ assay for real samples, considerable recoveries (RSD < 6%) and good linearity (R-2 > 0.99) were obtained in all four kinds of samples, involving reservoir water, tap water, female and male human urines. Thus, we believe our method would make certain contribution to the development of applicable versatile sensing platform for Hg2+. (C) 2018 Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000430232500035
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/167151
Collection中国科学院大连化学物理研究所
Corresponding AuthorWang, Ji-Hui; Feng, Liang
Affiliation1.Dalian Polytech Univ, Sch Biol Engn, Dalian 116034, Liaoning, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dalian 116023, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Liang, Xiao-Chun,Chen, Shuqin,Gao, Jianmei,et al. A versatile fluorimetric chemosensor for mercury (II) assay based on carbon nanodots[J]. SENSORS AND ACTUATORS B-CHEMICAL,2018,265:293-301.
APA Liang, Xiao-Chun.,Chen, Shuqin.,Gao, Jianmei.,Zhang, Hongyu.,Wang, Yu.,...&Feng, Liang.(2018).A versatile fluorimetric chemosensor for mercury (II) assay based on carbon nanodots.SENSORS AND ACTUATORS B-CHEMICAL,265,293-301.
MLA Liang, Xiao-Chun,et al."A versatile fluorimetric chemosensor for mercury (II) assay based on carbon nanodots".SENSORS AND ACTUATORS B-CHEMICAL 265(2018):293-301.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liang, Xiao-Chun]'s Articles
[Chen, Shuqin]'s Articles
[Gao, Jianmei]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liang, Xiao-Chun]'s Articles
[Chen, Shuqin]'s Articles
[Gao, Jianmei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liang, Xiao-Chun]'s Articles
[Chen, Shuqin]'s Articles
[Gao, Jianmei]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.