Knowledge Management System of Northwest Institute of Plateau Biology, CAS
High selectivity of colorimetric detection of p-nitrophenol based on Ag nanoclusters | |
Qu, Fei1,2; Chen, Ping1,2; Zhu, Shuyun1,2; You, Jinmao1,2,3 | |
2017-01-15 | |
发表期刊 | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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卷号 | 171页码:449-453 |
文章类型 | Article |
摘要 | Ag nanoclusters (Ag NCs) templated by hyperbranched polyethyleneimine (PEI) with different terminal groups and molecular weights had been developed as a special optical sensor for detecting p-nitrophenol (p-NP). When adding p-NP into Ag NCs, an obvious color change from pale yellow to deep yellow could be observed by naked eyes, accompanying with an apparent red-shift of absorption peak, and the reason was attributed to the formation of oxygen anion of p-NP based on the transfer of H+ from p-NP to amine groups of PEI. The molecular weights of template would greatly affect the sensitivity of p-NP. Ag NCs capped by PEI terminated ethylenediamine (EDA) possessed better sensitivity than other Ag NCs, showing good linear range from 5 to 140 mu M with the limit of detection as low as 1.28 mu M. Most importantly, this present system displayed high selectivity toward p-NP even in the presence of other nitrophenols and nitrotoluenes. This reliable method had been successfully applied for the detection of p-NP in real water and soil samples. (C) 2016 Elsevier B.V. All rights reserved. |
关键词 | Ag Nanoclusters Polyethyleneimine Colorimetric Detection P-nitrophenol |
WOS标题词 | Science & Technology ; Technology |
DOI | 10.1016/j.saa.2016.08.043 |
关键词[WOS] | QUANTUM DOTS ; PICRIC ACID ; LUMINESCENT PROBE ; 2,4,6-TRINITROPHENOL ; ION ; POLYETHYLENEIMINE ; NITROAROMATICS ; REDUCTION ; SAMPLES ; SENSOR |
收录类别 | SCI |
语种 | 英语 |
项目资助者 | National Natural Science Foundation of China(21405093 ; Scientific Research Foundation of Qufu Normal University(BSQD20130117) ; 21405094) |
WOS研究方向 | Spectroscopy |
WOS类目 | Spectroscopy |
WOS记录号 | WOS:000385601300057 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://210.75.249.4/handle/363003/6414 |
专题 | 中国科学院西北高原生物研究所 |
作者单位 | 1.Qufu Normal Univ, Key Lab Life Organ Anal, Qufu 273165, Shandong, Peoples R China 2.Qufu Normal Univ, Key Lab Pharmaceut Intermediates & Anal Nat Med, Qufu 273165, Shandong, Peoples R China 3.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810001, Peoples R China |
推荐引用方式 GB/T 7714 | Qu, Fei,Chen, Ping,Zhu, Shuyun,et al. High selectivity of colorimetric detection of p-nitrophenol based on Ag nanoclusters[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2017,171:449-453. |
APA | Qu, Fei,Chen, Ping,Zhu, Shuyun,&You, Jinmao.(2017).High selectivity of colorimetric detection of p-nitrophenol based on Ag nanoclusters.SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,171,449-453. |
MLA | Qu, Fei,et al."High selectivity of colorimetric detection of p-nitrophenol based on Ag nanoclusters".SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 171(2017):449-453. |
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