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

页码：751 / 757

页数：7

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