An off-on-off fluorescence probe based on a pyrazole derivative for Al3+ and Fe3+ detection

被引：6
|
作者：
Wei, Kehui [1 ]
Lyu, Sheyun [2 ]
Liu, Yuanying [1 ]
Kang, Mingyi [1 ]
Liu, Peng [1 ]
Yang, Xiaofeng [1 ]
Pei, Meishan [1 ]
Zhang, Guangyou [1 ]
机构：
[1] Univ Jinan, Sch Chem & Chem Engn, Jinan 250022, Peoples R China
[2] Henan Sanmenxia Aoke Chem Ind Co Ltd, Sanmenxia 472000, Peoples R China
来源：
NEW JOURNAL OF CHEMISTRY | 2023年 / 47卷 / 02期
关键词：
TURN-ON; SELECTIVE DETECTION; CHEMOSENSOR; ALUMINUM; RECOGNITION; SENSOR; CHROMONE; MULTIWFN; DESIGN;
D O I：
10.1039/d2nj05301b
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new fluorescence probe (E)-N & PRIME;-(2,3-dihydroxybenzylidene)-1-(pyridin-2-yl)-5-(thiophen-2-yl)-1H-pyrazol-3-carbohydrazide (L) was designed and synthesized, which could be applied as an off-on-off sensor for the successive detection of Al3+ and Fe3+. The detection limits of L towards Al3+ and Fe3+ were determined to be 1.10 x 10(-8) M and 4.45 x 10(-8) M, respectively. The 1 : 2 binding stoichiometry of L to Al3+ and Fe3+ was established from Job plot analysis, H-1 NMR spectroscopy and mass spectrometry titration. Application experiments proved that L had excellent ability to monitor Al3+ and Fe3+ in tap water, and the sensing process could be performed on test paper as well.
引用
收藏
页码：751 / 757
页数：7
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